Stuck on red M - Dual Core Logo - Xoom Q&A, Help & Troubleshooting

Hello, i recently bought a xoom (wifi only) and now im in a quite frustrating situation.
When i got it first i flashed CWM recovery and rooted it successfully, it worked all fine for a few days.
yesterday i left the xoom on charger over night and today morning it was stuck on the red M logo saying "Dual Core Technology".
well, my situation is like:
- i can restart the xoom using power + volume up, but every time it stucks on the M logo again
- i can boot into RSD with volume up while starting
- i can boot into fastboot with volume down while starting
- i can NOT boot into recovery, when i try it gets stuck at "Reading ODM fuse: 1"
i reflashed the original ROM from MOTODEV, but the device still behaves the same like before..
normal boot gets stuck at the M logo, recovery gets stuck on Reading ODM fuse: 1, just fastboot working fine (unlocking & flashing works fine)
i also searched for similar problems on the forums, but any promising solution links to filesonic links wich are not working/down
any ideas what i can do now? any help is appreciated
thanks

unlock the bootloader and flash Rogue Recovery v1.3.0
then try to enter cwm
are u on stock? or customrom? and have u tried to lock the bootloader using a customrom? cauz locking the bootloader with customrom = not good

hi, thanks for your reply.
im on stock rom and my bootloader is unlocked. i did relock the bootloader once, but only after flashing the original ROM from MOTODEV to my device, now it is unlocked again.
i first flashed the CWM 3.2.0.0 wich is available as .img via fastboot, but it does not start (Stuck on "Reading ODM Fuse: 1").
now i flashed the recovery.img inside of Rogue Recovery 1.3.0 (since i read in the corresponding thread that it works also this way), but again: Stuck on "Reading ODM Fuse: 1"

Maybe u r 2 quick? Turn on your xoom - if u see the M wait 3 sec then press vol down and then vol up
But as i said wait 3 secs - if u r 2 quick it will stuck at entering recovery

okay, so you flashed a new recovery image (did you verify the images md5-sum?) and without trying to reboot into android you cannot get into recovery? That is really odd.
If so, I suspect that something has really screwed up your internal memory. You might be able to fix it using a factory cable.
Btw: after flashing the recovery image, does the xoom say that it succeeded in writing the recovery image to its memory?

There should be a command to reboot the device to recovery? A function reboot to recovery is possible on eos 1.0 maybe theres a adb or fastboot command 4 that?

llama-power said:
okay, so you flashed a new recovery image (did you verify the images md5-sum?) and without trying to reboot into android you cannot get into recovery? That is really odd.
If so, I suspect that something has really screwed up your internal memory. You might be able to fix it using a factory cable.
Btw: after flashing the recovery image, does the xoom say that it succeeded in writing the recovery image to its memory?
Click to expand...
Click to collapse
after flashing the recovery, i can read
"Flashing StorMgr partition recovery STATUS: done!" on the xoom
the recovery image is fine, and until today i was able to boot into CWM 3.2.0.0
what is the thing with the factory cable?

about the factory cable: seems to be a modified usb-cable with two terminals on the micro-usb end being connected with each other. As far as I read, it should enable you to write to the xooms memory as long as the hardware is still okay, no matter how much you f***ed up your software I haven't had to use yet, though.
@what Unholy said: sure, adb reboot recovery will boot your xoom into recovery, but only if you have a working android running and usb-debugging enabled.
Reading ODM Fuse: 1, according to my information, means that the thing is trying to boot into recovery. Why nothing else shows up: I have no clue.
here is a thread where some us-users had a similar problem. They tried to root their xoom after getting the 4g-upgrade and ended up with the red M-Logo. After some screwing around, they even managed to wreck the fastboot-mode, thus only enabling rsd access. So no help on that side.
What especially bothers me about your problem is that it just appeared on its own. Right before your xoom showed its issues, you weren't flashing anything. Just charging shouldn't cause any of this.
I am beginning to suspect a hardware failure that can naturally be only fixed by motorola. But that's only my current opinion.
If I was you, I would try downloading the files from motorola again, check their md5-sums and then flash those using fastboot using these instructions.
If that still doesn't help, there may be a way to get a .sbf file from motorola for your xoom. That is a file which can be flashed using the windows software rsd-lite, but I haven't used that in a long time and it has been reported to not work really well with the xoom.
Next, I'd research a little on the factory cable thing, but I'd be careful with that.
As a last resort, I'd send the xoom to my dealer. Unluckily, there is a way to determine if you have had your bootloader unlocked, at least as long as fastboot is still working...

About the factory cable - with that cable u can flash your xoom if nothing else is working anymore (adb or cwm)
To build a factory cable u have to tie pin 1 (+) to pin 4 on the micro usb plug
I build one but never used it and hope i will never have to

i did download the original ROM from motodev again, checked the md5, and flashed according to the tutorial posted by llama-power, but the device still wont boot neither the rom nor into recovery.
since its now on 15% battery i think i will let it run out of power and then try to boot again...

The_Revenge said:
i did download the original ROM from motodev again, checked the md5, and flashed according to the tutorial posted by llama-power, but the device still wont boot neither the rom nor into recovery.
since its now on 15% battery i think i will let it run out of power and then try to boot again...
Click to expand...
Click to collapse
does the xoom charge when connected to ac power? I know that other devices (cellphones) wouldn't charge without working os.
However, I do not think that letting the battery run low will help you. Lithium ion batteries should not be low discharged as that will most likely destroy them and lead to a massive risk of explosion upon the next charge. Because of that, devices powered by a lithium ion battery will power down before depleting the battery, the xooms mainboard itself will most likely still be supplied with some power.
If you really want to cut the power supply to the mainboard, you'll have to open the xoom (two screws) and unplug the battery (the connector is held down by another two screws) for a couple of seconds. (here is a teardown of the xoom with pictures)
by the way, if you want to track your battery status without booting android (as that would obviously not work), you can use fastboot getvar battery-status.

well my xoom actually charges when i connect it to power, and the LED also lights up, so (thinking of what you said) it seems like the os and everything still is present, just like the bootloader cant load it or something?! is there maybe any way to update the bootloader itself?
yeah, i can also check the battery status when i'm booting with power and volume up (RSD) =)
well i'm actually thinking about disconnecting the battery, but i'm a bit unsure, i will study that now..

The_Revenge said:
well my xoom actually charges when i connect it to power, and the LED also lights up, so (thinking of what you said) it seems like the os and everything still is present, just like the bootloader cant load it or something?!
Click to expand...
Click to collapse
not neccessarily. Maybe the xoom just doesn't need any software to charge the battery.
The_Revenge said:
is there maybe any way to update the bootloader itself?
Click to expand...
Click to collapse
don't know, but since fastboot works I suspect that the bootloader itself is still fine.
The_Revenge said:
well i'm actually thinking about disconnecting the battery, but i'm a bit unsure, i will study that now..
Click to expand...
Click to collapse
have fun, but I wouldn't get my hopes up too high. I still suspect some sort of a hardware failure... Also, opening the device might leave some traces (botched screws, etc) that could lead motorola to say that you messed with your xoom if you should finally decide to send it in

well thats the same i thought about opening the device..
do you know any way to dump the partitions to the pc (maybe with fastboot?)

The_Revenge said:
do you know any way to dump the partitions to the pc (maybe with fastboot?)
Click to expand...
Click to collapse
nope, not without a working recovery.
fastboot erase partition_name should be able to clear your partitions, though. Replace partition_name with boot, system, userdata, cache or recovery

http://www.xoomforums.com/forum/xoo...ery-stuck-red-m-logo-fastboot-works-help.html
apparently that user seems to have had the same problem, he says he fixed it using 1.35 Everest Bootloader (SBF).
i also had that idea some time earlier and found a thread with the SBF files here on xda, also for the wifi model, but the only links i could find to SBF files were filesonic links wich are not working ._.
i'm now up to googling for SBF files (for the wifi only model), if i cant find anything promising i'll send it back tomorrow.
btw, erasing the partitions does not help, i've already tried that

Have u done the lte update?

UnholyX said:
Have u done the lte update?
Click to expand...
Click to collapse
he's got an wifi-only model (as stated in post #1) and is from germany (at least that's what his location and flag says). LTE upgrade is neither available in germany, nor for wifi-only-xooms. So I'd say no
@OP: that sounds quite promising. .sbf-files still seem to be available on some sites, downloading one for my xoom right now, just in case that site goes down in the future...

Yes he got the wifi version like me but something must happened ,-)
I also charge my xoom and nothing happens. He got wifi version but he maybe flashed a false update or so
There r people flashing stingray instead of the wingray version etc. - just asking what happened before - thats the reason - something must happened before ;-)

it seemed promising, but i cannot find any usable sbf file
i think i'll send the unit back tomorrow

Related

Relock US Xoom Tiamat 1.4.4 resulted in hanging at Motorola logo

Hey guys I was having some problems with my xoom's wifi on Tiamat's 1.4.4 so i decided to relock the device and use stock.
It's a US model and had build HMJ37 but i decided to follow this thread
http://www.xoomforums.com/forum/mot...4600-thinking-about-unrooting-read-first.html
I downloaded img build HRI66 and followed all the steps and it was ok. Then, i rebooted and now my device is at the motorola logo's dual core screen. Everytime i manually reboot with power and volume up it automatically reboots the device instead of shutting it down, it literally won't shut down and keeps hanging at the moto logo. It just keeps rebooting and getting stuck at the motorola logo. I then unlocked again, and performed the same process with the HRI39 img and still got the same problem
So im stuck. Please help me out guys, i'm in serious ****.
So you have gone as far as the "fastboot erase cache" and "fastboot oem lock" right? This is kind of funny because I tried to install Tiamat 1.1 ROM tonight and ended up going through this HUGE loop of problems.
Here's the problem I had: some time ago I installed ROMManager from the market. I thought it would be easier. It SHOULD be easier. I let it update my recovery to its own version 4.something. It allowed me to SORT OF install the ROM, but I wound up with some persistent system files that weren't getting wiped and a bcm4329.ko version mismatch.
This stumped me for a long time because all I could see was an "Error" message where I was supposed to be able to toggle the wifi on and off. I tried rolling back to my previous ROM. No go. And the culprit the whole time was ROMManager's CWM.
I tried rolling back my recovery.img file to the Tiamat version recommended in this forum. I kept getting all of these crazy "could not mount" errors for pretty much EVERYTHING. I thought my recovery partition was effed. So I rolled back to stock. Followed pretty much the same instructions you linked to.
From there I was able to boot into the stock OS. WiFi worked. I breathed deeply for a minute or two then dove right back in.
If I was in your position I would (and I did, though not from a boot loop) boot into fastboot and unlock the bootloader again. You can do it by holding the Vol down key as the device boots. When fastboot loads type "fastboot oem unlock". Press the Vol down key then the Vol up key. Do that again. Your device is unlocked now! Hooray!
Now you need to install a recovery.img. (I just did this too.) Get the .img file here: http://forum.xda-developers.com/showthread.php?t=1074979
Boot into fastboot again. Put the recovery img file you downloaded into the same directory as your adb and fastboot executables (if you haven't already linked to them in your PATH). Type "fastboot flash recovery recovery-lotsofstuffhere.img". Type "fastboot reboot". 2 seconds after the Motorola logo pops up press the Vol Down key. Then press the Vol Up key to enter recovery.
Ok, here's where I found out what a dumbass I was. I got all of the stupid "can't mount anything" errors again. I thought, HOLY ****. I just did all of that work, spent hours troubleshooting and reformatting and bringing it back to stock and flashing the custom recovery all over again just to run into the SAME error. I really thought I was screwed. Then I found some forum where a guy was complaining about the same error. He realized he was getting it because his sd card was half-way out. I thought - "SD CARD?!?" Some guys told me I needed one earlier too, but the ROMManager CWM didn't require it. It just screwed up my system files. So I popped one in and rebooted. Voila. Everything's kosher. If YOU have the same problem, make sure you've got an SD card in.
Ok, so now you're in recovery. You'll need to flash an OS of course. If you haven't already got it, get Tiamat 1.1 rom. Put it on the sd card. Wipe data/factory reset. Install zip from sd card. You're golden. At least I was. 5 hours later.
-Mike
Hey Mike I'm gonna give this a go. Just when i downloaded the img file to flash through fastboot i got an error saying battery was too lower to perform the recovery....damn it! The xoom isn't able to charge at the moment so i have to wait until it dies i guess (or i hope at least) and then charge it up and try again later.
Thanks again dude, hope i sort this out too. I'll download tiamat 1.1 in the meantime.
DUDE YOU'RE MY ****ING HERO!!!! I got it running can't say if everything is 100% just yet but the fac tthat im back in is enough to thank you so very much Mike!!! What a guy!
It worked? Great that's excellent news. Just out of curiosity - did you get there because you had ROMManager's ClockWorkMod? Or maybe you didn't do a full wipe before flashing a new rom? Or maybe you restored some WiFi settings with Titanium Backup after a new flash? How did you wind up with tthe problem in the first place - you know, for posterity.
well to be honest i am not 100% sure. I think the source of the problem msut have come from my previous installation of tiamat's 1.4.4 rom, it was always actin up on me and i don't believe i wiped the mod before i updated it and that may have done it. I wish i could give you more than just a pseudo answer.
DeeJayCruiser said:
Hey Mike I'm gonna give this a go. Just when i downloaded the img file to flash through fastboot i got an error saying battery was too lower to perform the recovery....damn it! The xoom isn't able to charge at the moment so i have to wait until it dies i guess (or i hope at least) and then charge it up and try again later.
Thanks again dude, hope i sort this out too. I'll download tiamat 1.1 in the meantime.
Click to expand...
Click to collapse
This is why they say to make sure you're plugged in when doing this important stuff, lol.
okantomi said:
This is why they say to make sure you're plugged in when doing this important stuff, lol.
Click to expand...
Click to collapse
Normally, I'd agree but in this rare case, he actually needed it to fully drain because he couldn't get it to power off using any normal method. Weird! so, it seems his only shot was to let it die to finally kill the screen and then start over. Very odd...
From original post
DeeJayCruiser said:
Everytime i manually reboot with power and volume up it automatically reboots the device instead of shutting it down, it literally won't shut down and keeps hanging at the moto logo.
Click to expand...
Click to collapse
farmsatguy said:
Normally, I'd agree but in this rare case, he actually needed it to fully drain because he couldn't get it to power off using any normal method. Weird! so, it seems his only shot was to let it die to finally kill the screen and then start over. Very odd...
From original post
Click to expand...
Click to collapse
You are right...I had forgotten that from the OP. Very strange indeed.
Yeah I dunno why, my xoom was just acting up. It's fantastic now, albeit the wifi still has a couple kinks but android market issues have been resolved, i get much better streams and with tiamat 1.1 everything is already built in and with a quickboot option =)
Xda...where would i be without you!
farmsatguy said:
Normally, I'd agree but in this rare case, he actually needed it to fully drain because he couldn't get it to power off using any normal method. Weird! so, it seems his only shot was to let it die to finally kill the screen and then start over. Very odd...
From original post
Click to expand...
Click to collapse
You should be able to reboot the device using vol up + power, then holding vol down and vol up until it says "Cold booting Linux.....".
This should do the same as letting the battery drain, plugging it in and turning it on.
DeeJay - dunno if you've done this already, but if you haven't you should go back to the Tiamat 1.1 thread and find the Modpack. It fixes the Market update issue and gives you built-in screenshot capabilities and an option to reboot into recovery from the power off menu. It's in there - you just have to scroll down a bit before you find it.
Also - what issues are you having with WiFi?
Thanks for that important tidbit, solarnz. I'm going to file it away for future use.
OMG!!!! Dude you just saved my life! I thought my baby was out the window. I had the exact same problem as you did. I was trying everything from every thread that had anything to do with this problem. I just finished installing and it booted. WHEWWW!!!
Thank u thank u thank u!!
Glad it helped. I'm seeing all kinds of posts in here about the ROMManager CWM. Not good.
Sent from my Xoom using Tapatalk

[Q] UK 3G Xoom - Possible brick? Bootloop after Moray update.

Never like to have to resort to posting myself but I've had a decent look around the web and can't seem to find a solid solution to my problem so I'm hoping to get some specific help
So I have a UK MZ601 3G Motorola Xoom which was happily running Moray 2.2.1 and had been rooted using the universal root method. Decided to update to 2.2.2 and now my Xoom is stuck in a boot-loop on the custom rippling water boot animation.
The tablet hangs on the first line when trying to boot into recovery so for all my efforts cannot access CWM and perform a hard reset and fresh rom install.
I've tried - and I'm assuming I'm correct in thinking this means I cannot get the Xoom to any stage where I can use adb to attempt to get in to recovery or push files to the system etc. this way.
From what I've read on other forum posts - booting holding volume up and power puts the device into an 'RSD' state which is another method of reflashing the device? I've read this requires an 'SBF' file - which I have seen for download - but believe it only works for the US models?
I've left the boot screen looping overnight - so its not an issue of it just being slow. Because of the custom boot screen I obviously can't return it to the shop as I presume its an obvious warranty void?
Would massively appreciate any help in bringing whats looking increasingly like a £500 paper weight back to life.
Thanks
crozuk said:
Never like to have to resort to posting myself but I've had a decent look around the web and can't seem to find a solid solution to my problem so I'm hoping to get some specific help
So I have a UK MZ601 3G Motorola Xoom which was happily running Moray 2.2.1 and had been rooted using the universal root method. Decided to update to 2.2.2 and now my Xoom is stuck in a boot-loop on the custom rippling water boot animation.
The tablet hangs on the first line when trying to boot into recovery so for all my efforts cannot access CWM and perform a hard reset and fresh rom install.
I've tried - and I'm assuming I'm correct in thinking this means I cannot get the Xoom to any stage where I can use adb to attempt to get in to recovery or push files to the system etc. this way.
From what I've read on other forum posts - booting holding volume up and power puts the device into an 'RSD' state which is another method of reflashing the device? I've read this requires an 'SBF' file - which I have seen for download - but believe it only works for the US models?
I've left the boot screen looping overnight - so its not an issue of it just being slow. Because of the custom boot screen I obviously can't return it to the shop as I presume its an obvious warranty void?
Would massively appreciate any help in bringing whats looking increasingly like a £500 paper weight back to life.
Thanks
Click to expand...
Click to collapse
When you press volume up and power, and hold it, it reboots, yeah? Then you wait about three seconds on dual core screen and tap volume down...what happens then? Do you see android recovery in upper left? Or starting fastboot protocol? Where does it hang? Just trying to see where things are going wrong. If you can get into starting fastboot protocol you are in good shape. If you can get into cwm recovery you should be in great shape. Check out the Xoom Heaven thread in General for some info on recovery.
You are most likely far from bricked...almost all of us have recovered from worse situations than you are in now so just keep cool.
okantomi said:
When you press volume up and power, and hold it, it reboots, yeah? Then you wait about three seconds on dual core screen and tap volume down...what happens then? Do you see android recovery in upper left? Or starting fastboot protocol? Where does it hang? Just trying to see where things are going wrong. If you can get into starting fastboot protocol you are in good shape. If you can get into cwm recovery you should be in great shape. Check out the Xoom Heaven thread in General for some info on recovery.
You are most likely far from bricked...almost all of us have recovered from worse situations than you are in now so just keep cool.
Click to expand...
Click to collapse
Thanks for your reply - tried numerous times getting into recovery - get stuck with one line of 'starting fastboot protocol' and seems to hang there.
Have experience rooting and flash etc. and have obviously used adb in the past.
If I could just get to recovery - or a state where I could use adb I would be fine. But as I said in my first post - looks like I can only access an 'RSD' state.
Is there any other way of getting adb access from my PC? All the help for bricked xooms seems to concern US models - and don't want to try anything that will completely write it off!
Thanks again for your help.
Quick update -
Have retried Fastboot - stuck on 'Starting Fastboot protocol support'
Tried Android Recovery - got stuck on a black screen for a long long time but finally booted!
Wiped and re-installed what I know to be a kosher ROM! Was a scary moment there but thanks for your help and reassurance!
crozuk said:
Quick update -
Have retried Fastboot - stuck on 'Starting Fastboot protocol support'
Tried Android Recovery - got stuck on a black screen for a long long time but finally booted!
Wiped and re-installed what I know to be a kosher ROM! Was a scary moment there but thanks for your help and reassurance!
Click to expand...
Click to collapse
If you are still rooted and all, just for safety's sake, make sure to do another nandroid backup and save it to your micro sdcard. Backup, backup, backup. Then also make sure that you have a compatible cwm recovery installed, that will let you access your microsd card. It sounds like you're alright, so, cool.

Did I hard brick?

Okay so I tried searching everywhere for a solution and I didn't find anything.
So this is what happened, I was on ICS leak 4.0.4 ICS.672.1.13.en.03 then I tried to Fxz to AT&T 2.3.5 InlineFlashing_edison_5.5.175.16_cfc_p3_APBP_CID28 5.zip and it got stuck at 5/20 saying "Rebooting bootloader" the screen stayed black for a long time, so I clicked close and this is where all this happened. My phone doesn't turn on, not even Fastboot, when I plug it into the charger it doesn't do anything, but when I plug it into my laptop without battery the white led turns on but still it doesn't do anything, the laptop doesn't detect anything and when I press the buttons it doesn't react nor do anything. I don't know anymore what to do, I bought this overseas so I have no warranty and it's not an AT&T phone. If anyone went through this, I really don't know what to do.. I know it's not softbrick as I can see it. I'll be very thankful if there is a solution, but my hopes are really down..
I know I read all the guides, it said "Don't pull battery or unplug. So I didn't unplug or remove battery, I just clicked close. I really didn't know this could happend. Didn't see it in any thread or post that you can't Fxz from 4.0.4 to AT&T 2.3.5, I only followed the steps from this thread: http://forum.xda-developers.com/showthread.php?t=1779968
I don't want this to happen to anyone.
Wrong thread! sorry... check your PMs darkmixta!
I made the same mistake
darkmixta said:
Okay so I tried searching everywhere for a solution and I didn't find anything.
So this is what happened, I was on ICS leak 4.0.4 ICS.672.1.13.en.03 then I tried to Fxz to AT&T 2.3.5 InlineFlashing_edison_5.5.175.16_cfc_p3_APBP_CID28 5.zip and it got stuck at 5/20 saying "Rebooting bootloader" the screen stayed black for a long time, so I clicked close and this is where all this happened. My phone doesn't turn on, not even Fastboot, when I plug it into the charger it doesn't do anything, but when I plug it into my laptop without battery the white led turns on but still it doesn't do anything, the laptop doesn't detect anything and when I press the buttons it doesn't react nor do anything. I don't know anymore what to do, I bought this overseas so I have no warranty and it's not an AT&T phone. If anyone went through this, I really don't know what to do.. I know it's not softbrick as I can see it. I'll be very thankful if there is a solution, but my hopes are really down..
I know I read all the guides, it said "Don't pull battery or unplug. So I didn't unplug or remove battery, I just clicked close. I really didn't know this could happend. Didn't see it in any thread or post that you can't Fxz from 4.0.4 to AT&T 2.3.5, I only followed the steps from this thread: http://forum.xda-developers.com/showthread.php?t=1779968
I don't want this to happen to anyone.
Click to expand...
Click to collapse
I made the same mistake, any way to repair my phone? Thanks a lot...
maqndon said:
I made the same mistake, any way to repair my phone? Thanks a lot...
Click to expand...
Click to collapse
THIS IS THE CORRECT WAY TO FXZ BACK FROM ICS:
http://forum.xda-developers.com/showthread.php?t=1805975
You are totally bricked, no way out, sorry, you need a new phone.
jimbridgman said:
THIS IS THE CORRECT WAY TO FXZ BACK FROM ICS:
http://forum.xda-developers.com/showthread.php?t=1805975
You are totally bricked, no way out, sorry, you need a new phone.
Click to expand...
Click to collapse
I was thinking about Motorola factory cable, if it would do something?
I read in some thread that it forces Motorola to go in fastboot mode http://www.droidforums.net/forum/droid-labs/146492-how-why-make-your-own-motorola-factory-cable.html
What's very interesting is that the phone definitely knows that it is not in the presence of mere mortals when you use a Factory Cable. The phone knows it is in the presence of Moto gods as it boot differently than normal. Some phones like the Motorola Napoleon actually come right out and say "Factory Cable Connected". Other phones will boot straight to the bootloader for flashing. The various Droids appear to boot normally until you notice that there is no USB connected indicator at the top (once the OS is up) and that the host computer doesn't register all the usual devices. Instead the host computer only registers the bare minimum interfaces needed for RadioComm, RSD Lite, etc. to be able to talk to the phone. This in and of itself simplifies things as you don't have to monkey with setting the phone to the right mode (e.g. "PC Mode") -- it is automatically in the right mode for flashing.
Another interesting thing that is allegedly possible with the Factory Cable is that with the battery removed, it is possible to access some diagnostic pads on the main board of the phone, that when shorted (before connecting the Factory Cable) will boot the phone in a special recovery mode to help recover bricked phones. I say "allegedly" because thus far we've not had much luck with this, and our information is that it may only apply to unsecured phones anyway -- not secured consumer phones. Running around shorting things randomly inside your phone is a very bad idea unless you are willing to risk the phone, your computer, or both -- but sometimes things must die in the name of science -- but again I digress.
Click to expand...
Click to collapse
Factory Cable
I made this cable yesterday and nothing... when i connect the phone into PC the white light turn on for less than a second then turn off. The PC don't recognize the phone in Linux neither Windows.
I believe that i made the cable right but i'm not a 100% sure.
white led is also an indication battery out of power. Do try connecting wall charger for a while and see if that brings up the power.
The bootloader is what controls the phone at this level. If the bootloader is corrupted the phone is hard bricked and the only way to fix it would be to jtag flash a working bootloader.
jboxer said:
The bootloader is what controls the phone at this level. If the bootloader is corrupted the phone is hard bricked and the only way to fix it would be to jtag flash a working bootloader.
Click to expand...
Click to collapse
But how is the bootloader corrupted if it was stuck at rebooting bootloader? Motorola got a very strange flashing thing...
darkmixta said:
But how is the bootloader corrupted if it was stuck at rebooting bootloader? Motorola got a very strange flashing thing...
Click to expand...
Click to collapse
Your bootloader is not corrupted, you hard bricked because you tried to flash a bootloader that is a lower version. There is code in the BL to not allow that, that is one of a few things that will actually brick this phone.
jimbridgman said:
Your bootloader is not corrupted, you hard bricked because you tried to flash a bootloader that is a lower version. There is code in the BL to not allow that, that is one of a few things that will actually brick this phone.
Click to expand...
Click to collapse
If the phone still has the new bootloader and it is not corrupted then why are these phones hard bricked? The Android boot sequence starts with the bootloader when the power key is pressed. During the bootloader process it initilaizes the hardware using init.rc and init.<machine_name>.rc and then it looks for keys being pressed to run fastboot, recovery, etc and in the absence of that will attempt to boot up the Android system. So did RSD wipe the kernel and then when it got stuck on the flashing the downgraded bootloader (many phones don't allow this) was the kernel not reflashed yet? Or is there no init.rc and init.<machine_name>.rc for the bootloader to initiize the hardware? If the phone still has a valid bootloader, kernel and init files it should boot so that fastboot can be run. What got wiped that is preventing the phone from booting? When hard bricked phones are resurrected with a jtag flash often it is just a valid bootloader or bootloader and kernel that are flashed that allow the phone to be booted into fastboot or recovery so a valid rom can be flashed.The bootloader is also what handles charging the phone when you charge a phone that has been turned off, so if a valid bootloader and kernel are present when you plug in the charger you should see the charging sequence. Just curious what got so messed up that the bootloader is not even booting to a point where fastboot can be run and the phone doesn't respond to a charger.
jboxer said:
If the phone still has the new bootloader and it is not corrupted then why are these phones hard bricked? The Android boot sequence starts with the bootloader when the power key is pressed. During the bootloader process it initilaizes the hardware using init.rc and init.<machine_name>.rc and then it looks for keys being pressed to run fastboot, recovery, etc and in the absence of that will attempt to boot up the Android system. So did RSD wipe the kernel and then when it got stuck on the flashing the downgraded bootloader (many phones don't allow this) was the kernel not reflashed yet? Or is there no init.rc and init.<machine_name>.rc for the bootloader to initiize the hardware? If the phone still has a valid bootloader, kernel and init files it should boot so that fastboot can be run. What got wiped that is preventing the phone from booting? When hard bricked phones are resurrected with a jtag flash often it is just a valid bootloader or bootloader and kernel that are flashed that allow the phone to be booted into fastboot or recovery so a valid rom can be flashed.The bootloader is also what handles charging the phone when you charge a phone that has been turned off, so if a valid bootloader and kernel are present when you plug in the charger you should see the charging sequence. Just curious what got so messed up that the bootloader is not even booting to a point where fastboot can be run and the phone doesn't respond to a charger.
Click to expand...
Click to collapse
This is similar to what has been done here with our phone:
http://www.xda-developers.com/android/motorola-at-it-again-locks-down-atrix-4g-even-more/
It is just like the atrix 4G situation.
What Moto has done with the A0.72 bootloader is that it will not allow you to flash back to the A0.65 bootloader once the A0.72 has been flashed to the device. What it does is blows one of the 3 efuses that allows the phone to boot to the mbmloader (moto's bootloader loader).
That is why we now have a modified fxz that will flash all of the fxz minus the bootloder. So you will be on GB, but still have the latest BL A0.72.
Moto has 3 layers of the bootloader itself and all 3 are signed with the same root CA, the very last one is the one that actually loads the kernel, and the issue with these bricks is that the 2nd layer of the bootloader mbmloader that is what these people that have bricked after flashing, was the mbmloader that allowed you to "load"/flash the mbm.bin for A0.65 and that tripped the efuse that turns the 1st layer BL off, so no charging either.
Moto seems to have gotten real nasty to to us Devs as of late, and why most of us in here are saying this will be our last MOTO phone.
P.S. so far even JTAG has not been ale to resurrect some of these bricks. I was at an AT&T repair facility the other day (yes I have full access to the back area) and we played with one of the reported ICS leak bricked phones and it would not even see that the phone was connected to the JTAG box. There was another phone that was also a "hard brick" that was not from the same leak that was a GB phone and it connected right up to the JTAG box without issue.
jimbridgman said:
This is similar to what has been done here with our phone:
http://www.xda-developers.com/android/motorola-at-it-again-locks-down-atrix-4g-even-more/
It is just like the atrix 4G situation.
What Moto has done with the A0.72 bootloader is that it will not allow you to flash back to the A0.65 bootloader once the A0.72 has been flashed to the device. What it does is blows one of the 3 efuses that allows the phone to boot to the mbmloader (moto's bootloader loader).
That is why we now have a modified fxz that will flash all of the fxz minus the bootloder. So you will be on GB, but still have the latest BL A0.72.
Moto has 3 layers of the bootloader itself and all 3 are signed with the same root CA, the very last one is the one that actually loads the kernel, and the issue with these bricks is that the 2nd layer of the bootloader mbmloader that was these people that have bricked with was the mbmloader that allowed you to "load"/flash the mbm.bin for A0.65 and that tripped the efuse that turns the 1st layer BL off, so no charging either.
Moto seems to have gotten real nasty to to us Devs as of late, and why most of us in here are saying this will be our last MOTO phone.
P.S. so far even JTAG has not been ale to resurrect some of these bricks. I was at an AT&T repair facility the other day (yes I have full access to the back area) and we played with one of the reported ICS leak bricked phones and it would not even see that the phone was connected to the JTAG box. There was another phone that was also a "hard brick" that was not from the same leak that was a GB phone and it connected right up to the JTAG box without issue.
Click to expand...
Click to collapse
That's definitely a strange situation. Jtag talks directly to the cpu and the nand flash so no matter how hard the phone is bricked it should be able to be accessed via jtag. I guess the moto efuses are operating at a very low level? Kind of crappy to put that in there that renders a device unusable. People are going to run out of phones to buy. On the LG-P999 forum many people swore off LG due to lack of updates and not being able to get hardware drivers from LG or Nvidia. At least with the Nvidia chip the P999 is virtually unbrickable as recovery and bootloader can be flashed at a very low level using Nvidia tools (bootloader is not even run to flash at this level). Phones that get the most updates are Nexus branded phones but I personally will never buy a Samsung device again. They have bad hardware code in their EMMC chips and there is a rash of Nexus S devices bricking themselves during an OTA flash or factory reset when the EMMC is issued an erase command. The bad code corrupts the EMMC during the erase and renders the device bricked beyond any repair. It only happens sometimes and when it does Samsung cannot even flash them again. So I guess that just leaves HTC. Now that Google owns Motorola future Moto models may become Nexus devices. I personally prefer Moto phones but I have not hard bricked mine yet. Since I bought it second hand and am in Thailand I have been very cautious and have done very little modding to it and decided to wait (thankfully) for the official OTA release. I almost flashed the leak and glad I waited. Thanks for the explanation as to why they are perma-bricked.
This is exactly happened to my phone.
I was up on the first ICS leak, rooted and everything working great! I tried installer a font and it rebooted as normal but then stalled at the "Rethink Possible" screen. After pulling the battery and starting all over, I attempted to start the ICS process again, starting with going back to 2.3.5 (Yes, this is where I went wrong!)
The darn thing is literally a brick right now.
I wish I would have left it alone....
MACKSnare519 said:
This is exactly happened to my phone.
I was up on the first ICS leak, rooted and everything working great! I tried installer a font and it rebooted as normal but then stalled at the "Rethink Possible" screen. After pulling the battery and starting all over, I attempted to start the ICS process again, starting with going back to 2.3.5 (Yes, this is where I went wrong!)
The darn thing is literally a brick right now.
I wish I would have left it alone....
Click to expand...
Click to collapse
Yes, you hard bricked it and there is nothing you can do to fix it. There were many warning about this posted with the leak and in other threads. Sorry to hear that you killed your phone. :crying:
Technically, if you were on the FIRST leak, you should be able to fxz back.
Sent from my SAMSUNG-SGH-I727 using xda premium
Fall of Enosis said:
Technically, if you were on the FIRST leak, you should be able to fxz back.
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
Yea, but he would have had to read the forums and fxz back using the custom script to prevent downgrading the baseband and bricking.

[Q] Xt925 fido problem

Hello all, this is my first real post here,
and I hate to say that I have a problem! First off let me say, I have trolled(and found MANY fixes here) and never had to sign up, because anything I needed was in the search menu!! which let me say is Awesome...
However i have a different problem this time, lol
I recieved my OTA of JB, I was rooted, after following a few steps, I unrooted and was able to update to JB, I rooted again, and somehow or another, I ended up back on ICS,(I found this VERY VERY weird) didn't think this was possible, but it happened after a few flashes.
Anyways today, I plug my phone into my pc,(after a few weeks of it working properly) to upload some pictures, it automatically started to flash, I unplug, reboot(which works most of the time) however NOT this time,
I have the following on my screen
AP Fastboot Flash Mode(S)
10.98(*)(sha-56608bc, 2012-11-23 and time)
eMMC Info:size 16gb
Device is LOCKED, Status Code:0
Battery Low
Transfer Mode: USB Connected
Partition(boot) Security Version Downgraded
Fastboot Reason : Boot Failure
usb connected
I have tried to load a 3rd party xml file aquired from this site, when loading I can get into the other screen which allows me to wipe data etc. but still nothing, Also tried to just let it run its course and nothing..
Officially I am a N00b and I would like some help
The third party file, gives me the error(rsd lite 6.1.4) flash fail
Now I cannot find much info on this, and am Kinda in a bind. Any help is appreciated and I will gladly take the n00b comments with it as I realize this is my own fault..lol
update: when I boot my phone OFF of usb cord, I get fastboot reason: sticky bit factory_fastboot at the bottom now, wtf is this? lol
waynold78 said:
Hello all, this is my first real post here,
and I hate to say that I have a problem! First off let me say, I have trolled(and found MANY fixes here) and never had to sign up, because anything I needed was in the search menu!! which let me say is Awesome...
However i have a different problem this time, lol
I recieved my OTA of JB, I was rooted, after following a few steps, I unrooted and was able to update to JB, I rooted again, and somehow or another, I ended up back on ICS,(I found this VERY VERY weird) didn't think this was possible, but it happened after a few flashes.
Anyways today, I plug my phone into my pc,(after a few weeks of it working properly) to upload some pictures, it automatically started to flash, I unplug, reboot(which works most of the time) however NOT this time,
I have the following on my screen
AP Fastboot Flash Mode(S)
10.98(*)(sha-56608bc, 2012-11-23 and time)
eMMC Info:size 16gb
Device is LOCKED, Status Code:0
Battery Low
Transfer Mode: USB Connected
Partition(boot) Security Version Downgraded
Fastboot Reason : Boot Failure
usb connected
I have tried to load a 3rd party xml file aquired from this site, when loading I can get into the other screen which allows me to wipe data etc. but still nothing, Also tried to just let it run its course and nothing..
Officially I am a N00b and I would like some help
The third party file, gives me the error(rsd lite 6.1.4) flash fail
Now I cannot find much info on this, and am Kinda in a bind. Any help is appreciated and I will gladly take the n00b comments with it as I realize this is my own fault..lol
update: when I boot my phone OFF of usb cord, I get fastboot reason: sticky bit factory_fastboot at the bottom now, wtf is this? lol
Click to expand...
Click to collapse
1) Don't use the fastboot files from here just yet... they are unofficial right now. I'm working on something better.
2) Your battery is low, you should get a factory cable or factory adapter. Look it up...
danifunker said:
1) Don't use the fastboot files from here just yet... they are unofficial right now. I'm working on something better.
2) Your battery is low, you should get a factory cable or factory adapter. Look it up...
Click to expand...
Click to collapse
I seen that it was low, switched back to my wall plug and I don't know if its charging or what, but now battery is OK, weird.
Ok, I will hold off, but from what you see , does this seem fixable? I love the phone, and if its a brick, then I may be a lil heart broken but lesson learned for sure. lol

[Q] Bricked TF700

Hi.
I own a TF700T and seems to have bricked it. Last status was: I had the latest stock ROM with root running and wanted to get a CM11 based 4.4.2 image from here. I downloaded it and used rom manager to get it installed. But the install script failed at some point and I thought the recovery might be outdated. So I used ROM Manager to update recovery... I tried CWM and TWRP option. Finally I booted up into recovery trying again to install those damn rom - I used the option to wipe all data / settings from the main menu and tried again to install the ROM which again failed (I do not remember the error message clearly). I gave up. I used the "reboot" option.
Now:
- Powering up gets me into the screen with the ASUS logo (left upper corner says "the device is unlocked"). Here it is stuck forever.
- Power + Vol-Down is same as just Power - I do not get into flashboot with those 3 small icons... I just get the ASUS logo and nothing else happens. Reset hole does not change situation. The device is pretty much "always on" now (till battery is exhausted) as long-press Power turns off and immediately on again
- Only thing that seems to work: Power + Vol-Up ends up in APX mode - my computer recognizes the device via USB at this point
Unfortunately I never did any set up to nvflash.
Do I have any chance to get this thing alive again?
Thanks a lot in advance,
q2.
Quentin2 said:
Hi.
I own a TF700T and seems to have bricked it. Last status was: I had the latest stock ROM with root running and wanted to get a CM11 based 4.4.2 image from here. I downloaded it and used rom manager to get it installed. But the install script failed at some point and I thought the recovery might be outdated. So I used ROM Manager to update recovery... I tried CWM and TWRP option. Finally I booted up into recovery trying again to install those damn rom - I used the option to wipe all data / settings from the main menu and tried again to install the ROM which again failed (I do not remember the error message clearly). I gave up. I used the "reboot" option.
Now:
- Powering up gets me into the screen with the ASUS logo (left upper corner says "the device is unlocked"). Here it is stuck forever.
- Power + Vol-Down is same as just Power - I do not get into flashboot with those 3 small icons... I just get the ASUS logo and nothing else happens. Reset hole does not change situation. The device is pretty much "always on" now (till battery is exhausted) as long-press Power turns off and immediately on again
- Only thing that seems to work: Power + Vol-Up ends up in APX mode - my computer recognizes the device via USB at this point
Unfortunately I never did any set up to nvflash.
Do I have any chance to get this thing alive again?
Thanks a lot in advance,
q2.
Click to expand...
Click to collapse
Unfortunately ROM Manager does not work with the TF700 and you are not the first one to find out the hard way...
If you cannot find a way to boot into the bootloader to have fastboot, there's nothing you can do anymore without the NVflash blobs.
Did you try holding Vol - and then pressing the reset button in that little pinhole on the side of the tablet?
If you have ADB drivers installed on your PC you could try if you can establish an ADB connection at any point. If you did, you could issue the command: "adb reboot bootloader", which would enable you to flash a recovery and/or bootloader. This probably won't work since you need to be in the recovery or have Android booted for ADB to work, but worth a try anyway...
Admittedly these are very thin straws - but what have you got to loose?
Also: Just a few days ago a user here was stuck on a bootloop to recovery and couldn't get out of it. He left it alone overnight and all the sudden the bootloop sorted itself out... I have no explanation for it and it is unlikely to happen in your case, but you never know...
Good luck!
Thanks for replying.
Yes, I did keep Vol-Down (means Vol-Left) pressed while pinching the reset button. It did not help.
I will experiment a bit more. It's not really a boot "loop" - it gets stuck at the ASUS logo and this does not change anymore. Not overnight.
So far I could only see it being recognized as USB device in APX mode. Can you give me a bit background here? I have nvflash here. The blobs are not available anywhere on the net? Or why is that all a big fuzz? I used to have a Notion Ink Adam and APX saved my life several times, but the blobs were available to everybody. Nobody has the blobs here? Or are they device-specific?
I cannot believe that a today's device with a non-bricked bootloader and working APX is totally lost and even the manufacturer will only offer a costly RMA to replace the whole mainboard!?
Best regards,
q2.
Quentin2 said:
Thanks for replying.
Yes, I did keep Vol-Down (means Vol-Left) pressed while pinching the reset button. It did not help.
I will experiment a bit more. It's not really a boot "loop" - it gets stuck at the ASUS logo and this does not change anymore. Not overnight.
So far I could only see it being recognized as USB device in APX mode. Can you give me a bit background here? I have nvflash here. The blobs are not available anywhere on the net? Or why is that all a big fuzz? I used to have a Notion Ink Adam and APX saved my life several times, but the blobs were available to everybody. Nobody has the blobs here? Or are they device-specific?
I cannot believe that a today's device with a non-bricked bootloader and working APX is totally lost and even the manufacturer will only offer a costly RMA to replace the whole mainboard!?
Best regards,
q2.
Click to expand...
Click to collapse
For the TF700 the nvflash blobs are device specific - sorry.
Damn. That was the only answer I didn't want to read
Thanks a lot. So chances are gone, only RMA could help... I will ask friendly at Asus what costs they will charge...
q2.
Update:
Reply is here.
They only want to exchange mainboard. They of course know (and it seems that this is the only thing they know) that my bootloader was unlocked, therefore this is no case of guarantee for them. I know, I wrote to them that I just want to know how much they wanna charge me to fix this issue.
But: they don't want to tell me how much. They say they do not even know which revision and what hardware is inside my tablet, not even from my serial number. And I must first send them my tablet and they will charge me 95 Euro to check what's going on. And then they will tell me how much it will cost (and according to other threads I saw prices of over 400 Euro for a mainboard change - the TF701 successor model cost 450 Euro new in store)...
I somehow feel the need to reply that if they would've put only half the energy the put into logging who has unlocked the bootloader into the fact of making APX usable as a emergency recovery (as obviously not even Asus is able to generate a working blob for my device), they would have higher customer satisfactory statistics. I still just cannot believe a today's device lacks of all recovery options after a bootloader fails for some reason - as well as I cannot understand why Koush did not display a warning in ROM manager if problems are known to the community with this specific device (I mean the problem did not arise last week and ROM manager had tenths of updates since then).
I know that in the end all was my fault. And all flashing is done on our own risk. I will have to deal with it.
Phew...
Unlucky. It should be be stickied here somewhere that ROM Manager bricks the TF700 but then there is no guarantee it would be read. It is well known on this forum but that doesn't help people that don't visit frequently.
You can replace the mainboard yourself fairly easily. Watch the you tube vids on how to do it,. That is what I would do if I was in your position.
berndblb said:
For the TF700 the nvflash blobs are device specific - sorry.
Click to expand...
Click to collapse
Is there a way to backup my blobs before I leave all stock then?
Thanx! Zeddock
Sent from my SAMSUNG-SGH-I717 using XDA Premium 4 mobile app
zeddock said:
Is there a way to backup my blobs before I leave all stock then?
Thanx! Zeddock
Sent from my SAMSUNG-SGH-I717 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2455925&highlight=nvflash
Any Solution?
Quentin2 said:
Hi.
I own a TF700T and seems to have bricked it. Last status was: I had the latest stock ROM with root running and wanted to get a CM11 based 4.4.2 image from here. I downloaded it and used rom manager to get it installed. But the install script failed at some point and I thought the recovery might be outdated. So I used ROM Manager to update recovery... I tried CWM and TWRP option. Finally I booted up into recovery trying again to install those damn rom - I used the option to wipe all data / settings from the main menu and tried again to install the ROM which again failed (I do not remember the error message clearly). I gave up. I used the "reboot" option.
Now:
- Powering up gets me into the screen with the ASUS logo (left upper corner says "the device is unlocked"). Here it is stuck forever.
- Power + Vol-Down is same as just Power - I do not get into flashboot with those 3 small icons... I just get the ASUS logo and nothing else happens. Reset hole does not change situation. The device is pretty much "always on" now (till battery is exhausted) as long-press Power turns off and immediately on again
- Only thing that seems to work: Power + Vol-Up ends up in APX mode - my computer recognizes the device via USB at this point
Unfortunately I never did any set up to nvflash.
Do I have any chance to get this thing alive again?
Thanks a lot in advance,
q2.
Click to expand...
Click to collapse
Unfortunately I'm stuck in same boat I tried to wipe out settings completely and clockwork mode was stuck and I was able to wipe recovery with TWRP or so I thought tried to reboot into recovery got stalled and now stuck on asus screen. I'm not opposed to buying a new motherboard but I find it very hard to believe that no one has come up with a solution to flashing the mainboard with the original firmware. I'm tempted to ask asus but I know the bill will be more then the tablet. Did you find an easier solution or do I just have to swap out the mainboard?
sbdags said:
http://forum.xda-developers.com/showthread.php?t=2455925&highlight=nvflash
Click to expand...
Click to collapse
Thanx, but it seems like to backup blobs I have to do the very thing that will risk me needing backup of my blobs? ... install a custom bootloader before I have a backup?
Is this right?
Is this a safer method?
zeddock
zeddock said:
Thanx, but it seems like to backup blobs I have to do the very thing that will risk me needing backup of my blobs? ... install a custom bootloader before I have a backup?
Is this right?
Is this a safer method?
zeddock
Click to expand...
Click to collapse
That's correct. You have to flash a modified bootloader and recovery. Done correctly this is not risky at all. But if there is a single line in the instructions you are not sure you understand, you are not quite ready.
There are quite a few tutorials on flashing in fastboot on this forum. Read them.
But generating your nvflash blobs you have to do without a safety net. It's worth it though! I have become much more adventurous with my tablet since I have the blobs squared away...
berndblb said:
Done correctly this is not risky at all.
Click to expand...
Click to collapse
How do you define risk?
Flashing a bootloader (without having nvflash access) is always risky by my definition, it *can* permabrick your tablet if something goes wrong at the wrong moment. But it's the best we have.

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