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[Q] Need help flashing img via Fastboot - am I bricked?

Had just flashed the latest CM9 nightly (clean install, fresh wipe) yesterday and everything was running fine.
This morning, woke up, my phone was turned off. When powering it on it hung on the google screen. Fastboot still working, booted into recovery only to find that I would get error messages when trying to load my backs "E:unable to mount /sdcard". Apparently it also couldn't mount /data. So I was unable to flash any images or restore or boot up.
Seeing that fastboot was still working I assume I'm not bricked yet. I tried flashing a new boot and cwm recovery via fastboot - no dice. Same errors.
I don't have a recent backup of anything in sdcard, but at this point I'm willing to sacrifice it.
Found this thread http://forum.xda-developers.com/showthread.php?t=1078213
and I'm trying to follow the steps to flash back to stock GB. using the GRJ22 images
It flashed the boot and recovery without issue but seems to hang while flashing the system.img. I know it's a big file, but it was up to ~2hrs with it still transferring. I pulled the plug on it and tried again, lost patience after an hour.
Now I had the idea of maybe locking and unlocking the boot loader would help things.....not sure why I thought this. Anyway, now it seems to hang on the unlock bootloader screen.
So my question now - am I screwed?
- anything else to try?
- is it really "hanging" or do I need to give it more time?
- have I screwed myself even more by now locking my bootloader and flashing the stock recovery?
Any help would be very much appreciated....

Some new additions and new insights from the reddit android community:
- this probably has nothing to do with CM9. My phone has been wonky for about two weeks - random reboots, sometimes rebooting into recovery. That's why I thought I'd throw on the latest nightly and do a fresh wipe yesterday.
- There's definitely something up with /data. Anytime I tried wiping all/factory reset in cwm recovery I got errors about not being able to mount /data or being able to find files in /data
- basically anything I do involving /data partition causes the phone to lock-up -- flashing the boot.img and recovery img worked, but not system. Also, I think the reason I can't re-unlock the bootloader is because during the unlock process it tries to do a factory reset/data wipe
Basically I think there are two things I need to know if I can do - 1) unlock the bootloader again, via some way that won't try to reset the /data partition and thus won't freeze the phone. 2) try repartitioning /data
I really hope I didn't screw myself by locking the bootloader. I'd actually feel a lot better if it was something in my phone that just failed hardware-wise rather than something I could've fixed if I wasn't too quick to try poorly thought out ideas.....
Any help at all would be appreciated!

Possibly (and likely) a corrupted nand flash. Fairly common problem sadly. I'd say it's a good thing your bootloaders locked, no dramas sending it back to samsung. It might've been possible to reset the partitions and flash fastboot images but i don't think i've seen anyone who has done this to sort any similar problem. Hopefully your phones still under warranty

Well thank God that it turns out that I'm still on warranty.....sending the phone back to Samsung tomorrow.
Like you said, it's actually a good thing the bootloader is now locked and the stock boot img and recovery img are now back on! Hopefully this makes it more likely that they weren't turn away my phone.

I've yet to hear someone not getting work done under warranty because of an unlocked boot loader but it's always good to have it as stock as can be. Hope they don't take too long with your phone.

Harbb said:
I've yet to hear someone not getting work done under warranty because of an unlocked boot loader but it's always good to have it as stock as can be. Hope they don't take too long with your phone.
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Click to collapse
I bricked my nexus s 4 days before Christmas last year... and i was using a custom rom obviously with an unlocked bootloader and custom recovery image, and i handed it to vodafone, and guess what? they repaired without asking any questions, and the day before Christmas! sooo happy maybe because i was thirteen then, they didn't suspect a thing

[Q] Bricked xt925 - read-only eMMC ?

Hello,
Since yesterday my phone is crashing about 20-30 seconds after properly booting. I can unlock the phone with my lockscreen pattern, I land on my homescreen but process like Google Play Services goes like "x has stopped working".
On CWM I've erased /system and /data and then reflash a rom (Slimkat or CM), Erasing and flashing process on CWM seems to work as planned but when the phone reboot it's still on Slimkat with all my datas, like if nothing have been done in CWM.
So I've rebooted on the bootloader and tried a "fastboot -w", again the process seems to be ok on my pc but when the phone reboot it is still on this f**ked rom with all my datas, like if fastboot have done nothing.
I've tried to flash an up-to-date CWM, same thing again.
I think the eMMC chip are deeply corrupted, they say any writing on it is ok but in fact they are read-only, which may explain why all the process are crashing after the boot and why flashing seams ok but are useless.
What do you think XDA, andy idea about my problem ? Do you think it's an Hardware issue or what can I do to solve it ?

Why not flashing a stock firmware to go back to STOCK?

joel_sinbad said:
Why not flashing a stock firmware to go back to STOCK?
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Click to collapse
I've tried it with RSDLite but same thing again, everyhing seams ok in RSDLite, the 22 blocks are writed but at the reboot it's still the same Slimkat with my datas.

Ezekiel3 said:
I've tried it with RSDLite but same thing again, everyhing seams ok in RSDLite, the 22 blocks are writed but at the reboot it's still the same Slimkat with my datas.
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Click to collapse
if infact it has gone read only as has happened to some other users, there is no known fix. all known angles have been explored, even with input from a developer.
if you find a fix, post it, it may help others.
most likely, you will need a new phone.

I agree with bwen diord...aint never see anyone recover from that, least not yet.

cmh714 said:
I agree with bwen diord...aint never see anyone recover from that, least not yet.
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Click to collapse
I've just see it's possible to boot from the SD card in that case but I'm to lazy to try it.
Goodbye little RAZR HD, we have covered a lot of mileage together, it's time to leave. :angel:
Anyway thanks for the help XDA

[Q] [NOOB] Can't get phone out of the M logo XT925

Here's a step-by-step of what happened:
Two days ago (I think) the KitKat update for XT925 was released. When the download was done, as I was playing CoC on my phone, my handset asked for permission to instal it. Right after I allowed it, I left for lunch or w/e, and when I came back my phone was on this boot image, with the motorola "M" logo sitting there, laughing at me. Went the rest of the day without my phone because I thought it was still finishing the installing. When I finally got home at night, still the same screen.
I DID root it, but no such things as CyanogenMod or anything else were flashed to it, so I got no backups. Bootloader is still locked. Already tried wiping cache and a factory reset from the recovery mode. After googling it for some good time now, this is my last hope. What am I supposed to do? I encrypted it if that helps in anything. Complete newbie here.

phmrr said:
Here's a step-by-step of what happened:
Two days ago (I think) the KitKat update for XT925 was released. When the download was done, as I was playing CoC on my phone, my handset asked for permission to instal it. Right after I allowed it, I left for lunch or w/e, and when I came back my phone was on this boot image, with the motorola "M" logo sitting there, laughing at me. Went the rest of the day without my phone because I thought it was still finishing the installing. When I finally got home at night, still the same screen.
I DID root it, but no such things as CyanogenMod or anything else were flashed to it, so I got no backups. Bootloader is still locked. Already tried wiping cache and a factory reset from the recovery mode. After googling it for some good time now, this is my last hope. What am I supposed to do? I encrypted it if that helps in anything. Complete newbie here.
Click to expand...
Click to collapse
being locked, i believe the only way to "try" and fix it would be to re-flash the kk sbf for your region with rsd. however, if the update is just rolling out, i doubt that is available yet.
im pretty sure you are stuck until you find this stock file, or it is released.

What was your battery at when you started the update?
Sent from my HTC6525LVW using Tapatalk

I think I've bricked my phone and am not sure what to do

Hey all, before I start I'd like to apologise for making the post here but I don't know what you guys would classify the state of my phone as, "bricked, soft-bricked, hard-bricked", I have no clue! As a result I have no idea what threads to start looking in so I've come here to make this, sorry again!
I'm here looking for help because I think I've completely destroyed my Moto G and really really would like to fix it.
Basically, I had been running an old version of CyanogenMod for months and was not able to update due to the fact my bootloader was not updated. After finally updating it through a tool on XDA, I installed the newest version of CyanogenMod onto the phone and it was all going well, except for the fact all of my Google apps were crashing and making it impossible to use.
Now, I'm not sure why, but without taking any precautionary measures or looking into it at all or what I needed to do, I then decided to try and flash a Paranoid Android rom onto the phone, which installed fine. I load the phone up and something comes up with a passcode saying I need to unlock it to use the phone. I put in some random things and eventually get it, but it says my data is corrupted and therefore I need to reset to factory settings and there's a button there to do it. I think "why not" and click.
So now, the phone did something weird and basically went into a bootloop of the PA logo, so I restarted the phone and went to the bootloader thing. When doing "Normal Startup" it loads the phone with the PA logo like before, comes up with a brief "Android is Upgrading" screen before showing me the passcode screen for half a second, before repeating this, thus having a bootloop. Every so often, I can put my code in and press the reset button again, but it does the same thing.
On the other hand, if I try to access my ClockworkMod recovery system, the screen repeatedly flashes with the CWM background of the Android Alien guy, as if to say it keeps trying to start but it cannot.
TLDR: I cannot access my phone through a normal powerup or through my recovery, have I screwed it completely?
I'd hugely appreciate any help here guys because I'm stressing like I never have before here, thanks!
EDIT: it is the X0123 version!

Spaciouz said:
TLDR: I cannot access my phone through a normal powerup or through my recovery, have I screwed it completely?
I'd hugely appreciate any help here guys because I'm stressing like I never have before here, thanks!
EDIT: it is the X0123 version!
Click to expand...
Click to collapse
Just a few questions before I start suggesting a full flash to stock.
Did you have any SIM passwords, boot passwords, CWM passwords before flashing?
Also In CWM does it flash before any options are selected and did you dirty flash the new ROM over the old ROM?
Anyway, your phone is not hardbricked as it can get to recovery so thats good news.
I would suggest flashing your phone back to factory stock using the tools here on XDA (http://forum.xda-developers.com/showthread.php?t=2542219). That should hopefully resolve most of the issues and then if you feel like it you can start flashing custom ROMs again.

Help, out of ideas. Possible mother/logic board going bad?

I have a well and heavily used Galaxy S5 (GM-900P) and about 2 months ago it started accting up pretty hard. Becoming very very slow so I decided to update to the latest sprint firmware and install a new(er) rom ([ROM][QD1][6.0.1]14Dec2017] Stock-ish Plus Tidbits and Magisk) and all was good for about 5 days and the phone started having apps crash/force close like crazy and most the time just reinstalling them would fix it but a bunch of google play services would crash and would have to uninstall the updates then it would work again for a day or so, sometimes it would randomly restart and get stuck at the boot screen and the phone would get crazy hot and the only way out of it was to boot into the recovery and then reflash the stock firmware in odin again then reinstall the rom. Then I had my phone all of a sudden act like there was no sim card in it and originally though it was a sim card issue but turns out it wasnt, I had to boot into the recovery and do a full wipe of everything reflash the stock firmware yet again and then reinstall the rom again. That happened twice in a matter of a week. At my wits end I decided to give LineageOS v16 a try so I boot into recovery, do a full wipe, boot into download mode, flash the latest stock firmware in odin, then boot right to recovery, flash LineageOS 16.0 then latest Magisk and all was great, for about a week, then Google services start crashing again and random apps crash over and over and even times the phone would slow down and reboot, get stuck at the boot screen and then eventually just reboot back into recovery by itself after failing to boot. But with LineageOS at least just reflashing the rom in the recovery will let it boot right back up sometimes and work as it should for another few days, other times too much stuff will just keep crashing so I do a full wipe and reflash LineageOS and all will be great for another few days to a week and it starts all over again. Its like stuff just randomly gets corrupted on the device and the only way out of it is to reflash the whole thing and start over and enjoy it until it does it again. Sometimes it will go days, sometimes a day later its all screwy again.
Also, TWRP always fails when I try to do a back up and it seems to always fail when in the data or data/private-app part of the system and its never at the same point.
I guess my question here is, could the onboard flash (the motherboard/logic board) be taking a crap on me? I really really dont want to give up on this phone just yet as it has everything I want in a phone and frankly, I just really really like it. I can get a new (used) motherboard for like $20 but even that kind of worries me cause I dont want to possibly be in this same position 3 months later again. I have a Galaxy S8+ (unlocked AT&T phone) that I refuse to use yet just cause I can not root it or unlock the bootloader.
Any help or ideas would be much appreciated and sorry for the long winded post.

could be wrong, on this one, But.....
If it was mew, I would go to stock . run that for a day, maybe 3... if all it well, then flash over what ever Rom you would like.
"KNOWING IT Work" is the key. Oh, another thing, that may help too . seen this on one of the LineageOS 15.1 or 16 is when you wipe ... System and Data, can be Reformatted, they have had some major success by also formatting it, (YES EXT4) but this will help to ensure nothing left over....
May even help with others Android 8.0, 8.1, 9.0....

Well, I have a new motherboard on the way so we'll see how that goes but I did manage to get the stock firmware on there and booted then I reflashed TWRP and then Magisk and going to just run it that way for a bit and see what happens.
I initially went in to TWRP, wiped data,system, etc... then flashed the stock firmware in Odin, then rebooted, got stuck at the Samsung boot logo so pulled the battery, booted to stock recovery, did a factory reset (Wiped everything, internal sd card included), then got it to boot, set the phone up, then rebooted to download mode, flashed TWRP, then rebooted again, set the phone up a bit more then decided to flash Magisk so I have root, and so far its working. 100% stock with magisk. Fingers crossed.
I still think there is an issue with the internal flash memory though as I can not get a TWRP backup to actually complete without failing. It always fails when backing up stuff in the data partition/section and never at the same point like its having read errors or something. I'll grab a TWRP log and post it up in a bit.

Well, that didnt last long. Within an hour, apps started crashing. I will make this thing work! LoL