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[Q] Nexus S 4g will not Boot after updating ROM

Hey everyone
Ive been using the Nexus S 4g with Slim ASS mod and have had no issues so far. It had been constantly reminding me to update to the new rom version [3.8 to 4.0] so I downloaded the file, booted into recovery, and installed from sd card. Now whenever I boot my phone, it gets to the Google progress bar, loads all the way up, and locks up. Nothing can get it off this screen besides removing the battery.
I can still boot into recovery [volume up + power] but nothing from there seems to change anything. My computer wont recognize it when its connected even though it makes the noise that it did, so I couldnt even try to do - http://forum.xda-developers.com/showthread.php?t=884093
Is there anything that can be done or will I have to wipe my phone and start over? Will that even fix the problem?

I was able to use http://forum.xda-developers.com/showthread.php?t=884093 by mounting USB storage in recovery mode but when I boot with this, Airplane mode will not turn off rendering the phone still useless.
I can mount anything in recovery mode. However, when i try to connect my phone to the computer not using recovery mode's mount usb storage, my computer doesnt recognize the phone.
I havent found a reason why airplane mode will not turn off. I tried using the one click back to stock files but that gives me an error saying USB debugging is not enabled even though it is. Ive tried using that by mounting usb storage and having my phone booted but nothing seems to help.
Not trying to double post but I figured I'd at least let it be known what I can do with my phone and what hasnt worked.

Won't boot, won't connect to windows.

So I've been running Vegan-TAb GingerEdition 7.0.0 (using clockworkmod I don't remember the version) for a year or so and decided I was going to upgrade. I plugged the USB into my Win7 64bit PC and it told me it was unsupported please format. I of course wasn't going to let Windows format it and since I had upgraded ton Win7 since I had last connected the tablet I figured that was the issue. I started searching the forums on how to fix this and the tablet died. I figured I had just forgot to plug it in so I did and let it charge. When I went to turn it back on later, I got past the birds then to the Vegan-Tab loading screen. It would come on, flash, then go blank, come on again flash and repeat a total of 9 times, then just go blank. The PC recognizes it as there but when I try to open the drive it says "Please insert a disk into removable disk H:". I've tried installing the usb drivers through the SDK, it seemed successful, but I still get the Please insert disk. I then tried the USB drivers suggested by the nVflash thread and still nothing.
Any suggestions? Should I try a Linux machine? I've searched around and haven't found anyone else with this same problem.

GreenMan1976 said:
So I've been running Vegan-TAb GingerEdition 7.0.0 (using clockworkmod I don't remember the version) for a year or so and decided I was going to upgrade. I plugged the USB into my Win7 64bit PC and it told me it was unsupported please format. I of course wasn't going to let Windows format it and since I had upgraded ton Win7 since I had last connected the tablet I figured that was the issue. I started searching the forums on how to fix this and the tablet died. I figured I had just forgot to plug it in so I did and let it charge. When I went to turn it back on later, I got past the birds then to the Vegan-Tab loading screen. It would come on, flash, then go blank, come on again flash and repeat a total of 9 times, then just go blank. The PC recognizes it as there but when I try to open the drive it says "Please insert a disk into removable disk H:". I've tried installing the usb drivers through the SDK, it seemed successful, but I still get the Please insert disk. I then tried the USB drivers suggested by the nVflash thread and still nothing.
Any suggestions? Should I try a Linux machine? I've searched around and haven't found anyone else with this same problem.
Click to expand...
Click to collapse
You might have to nvflash the tablet back to factory stock ROM for BL 1.2 and then upgrade the rom to VeganTAB 7.1 from their site.
When you set your tablet in apt mode ( power and the + volumn buttom, the 3 birds will display and then screen goes blank, that is
normal) and plug it to the PC, the PC should make a sound then you are ready to do a nvflash.
http://viewsonic-gtablet-for-dummies.webs.com

tsukaza said:
You might have to nvflash the tablet back to factory stock ROM for BL 1.2 and then upgrade the rom to VeganTAB 7.1 from their site.
When you set your tablet in apt mode ( power and the + volumn buttom, the 3 birds will display and then screen goes blank, that is
normal) and plug it to the PC, the PC should make a sound then you are ready to do a nvflash.
Click to expand...
Click to collapse
I've already tried that, it didn't work.

Clockwork mod is still working. I've been holding power and vol - not vol+ I feel dumb. Hopefully I don't have to factory reset.

[Q] Can not enter APX mode. Bricked?

I posted this in general as well, but figured I'd post it in Q&A.
I was going to install the Revolution rom and downloaded the super wipe. I ran it through Clockwork-mod (mistake) and didn't realize that I can't mount my external SD card in CWM. After running super wipe the tablet only boots into recovery. I can not get my tablet to boot into APX mode. On my PC it does not even show that the tablet is connected. My /data is missing completely. Is there a way to fix this? Any help would be appreciated.
Edit: Running CWM Touch 5.8.0.2

ultmontra08 said:
I posted this in general as well, but figured I'd post it in Q&A.
I was going to install the Revolution rom and downloaded the super wipe. I ran it through Clockwork-mod (mistake) and didn't realize that I can't mount my external SD card in CWM. After running super wipe the tablet only boots into recovery. I can not get my tablet to boot into APX mode. On my PC it does not even show that the tablet is connected. My /data is missing completely. Is there a way to fix this? Any help would be appreciated.
Click to expand...
Click to collapse
Get a microsd card reader and copy the rom to the microsd card through the reader
Sent from my EPAD using xda app-developers app

zachf714 said:
Get a microsd card reader and copy the rom to the microsd card through the reader
Sent from my EPAD using xda app-developers app
Click to expand...
Click to collapse
CWM doesn't recognize the external MicroSD.

ultmontra08 said:
CWM doesn't recognize the external MicroSD.
Click to expand...
Click to collapse
go into cwm and use adb to push the rom to the internel storage
Sent from my EPAD using xda app-developers app

zachf714 said:
go into cwm and use adb to push the rom to the internel storage
Sent from my EPAD using xda app-developers app
Click to expand...
Click to collapse
Tried that as well, it is not recognized on my PC as any type of device.

Hold volume up while its on in cwm and keep it down with the power and u should end up in apx
Sent from my ADR6300 using xda app-developers app

ultmontra08 said:
Tried that as well, it is not recognized on my PC as any type of device.
Click to expand...
Click to collapse
if the PC isn't seeing anything at all when you plug it in while it's in recovery, then it's a connection issue. Try another PC, and if it's still not seen, it's probably your cable, which is why you can't see the tablet in APX mode as well

fohdeesha said:
if the PC isn't seeing anything at all when you plug it in while it's in recovery, then it's a connection issue. Try another PC, and if it's still not seen, it's probably your cable, which is why you can't see the tablet in APX mode as well
Click to expand...
Click to collapse
It's not the cable. It was working fine prior to trying to do what I stated in the first post.

ADB could see it ... try.. if it can you can adb push or install twrp
Sent from my EPAD using xda app-developers app

ultmontra08 said:
It's not the cable. It was working fine prior to trying to do what I stated in the first post.
Click to expand...
Click to collapse
Then it's a timing/driver issue of getting into APX mode and getting it recognized. You can't wipe or remove or brick APX mode, without seriously trying. It would involve booting the tablet using some very hacked script to use the primary partition table instead of the use accessible secondary table, as APX is stored in a partition that is more or less untouchable
Just plug it into your computer, and hold down power and volume up. Hold it down for like a solid 45 seconds, even if it keeps rebooting, If after you hold power and volume up, the screen eventually goes black, then you're in APX. Open up device manager on your pc and look for any new or unrecognized devices, if nothing then try a different usb port. But a superwipe script definitely did not alter your apx mode, I can promise you that
And if that still doesn't work, try a different PC. If that still doesn't work, then I'm still betting it's the cable. When's the last time you used it for data transfer, and not charging? They do go bad. If recovery is mounted and successfully booting, then its ADB server is running. Which, if you make a working connection to a PC, will be seen

Hi ultmontra08,
Are you sure it isn't the cable?
I ran into this issue as well, I was stuck in recovery mode http://forum.xda-developers.com/showthread.php?t=1913905
If the cable is charging the tablet, it doesn't mean that it can't be defective still.
The computer should detect the device in recovery mode and apx mode. In my issue it didn't detect my device in recovery mode at all.
Until I got a new cable, I was able to see my device show up in Device Manager while it was in recovery mode.
I was able to narrow it down to being the cable because it would not show up on 3 different computers.

fohdeesha said:
Then it's a timing/driver issue of getting into APX mode and getting it recognized. You can't wipe or remove or brick APX mode, without seriously trying. It would involve booting the tablet using some very hacked script to use the primary partition table instead of the use accessible secondary table, as APX is stored in a partition that is more or less untouchable
Just plug it into your computer, and hold down power and volume up. Hold it down for like a solid 45 seconds, even if it keeps rebooting, If after you hold power and volume up, the screen eventually goes black, then you're in APX. Open up device manager on your pc and look for any new or unrecognized devices, if nothing then try a different usb port. But a superwipe script definitely did not alter your apx mode, I can promise you that
And if that still doesn't work, try a different PC. If that still doesn't work, then I'm still betting it's the cable. When's the last time you used it for data transfer, and not charging? They do go bad. If recovery is mounted and successfully booting, then its ADB server is running. Which, if you make a working connection to a PC, will be seen
Click to expand...
Click to collapse
I caved and purchased a new sync cable from amazon and it fixed the issue of not being seen by the PC! I've seen other posts about cables going bad, but I didn't think it would do any good. I just restored the newest stock image and I'm going to keep it there until I get a Google Nexus tablet in the future. It's interesting that these cables go bad. I've had the same iPod usb cable for six years and have never had a problem with it.

[Q] Sensation won't boot up or charge

I've seen a couple of threads about this but none of them have the same issues as I have or they remain unanswered.
My HTC Sensation (EU version) won't boot up at all. I can't boot it into recovery or bootloader and when charging the light doesn't turn on.
It recently started to randomly reboot and at one point it completely corrupted all files on my SD card. However, it worked ok after I bought a new SD card and the random reboots didn't bother me that much. Today when I woke up however, I saw that it wouldn't respond to me pressing the power button. I also noticed that the charging light wasn't on (it was plugged into the wall overnight).
I tried removing/reinserting the battery, I tried booting into recovery and bootloader, I tried connecting it to my PC and forcing it to boot into bootloader but nothing works. To clear things up, when I try to boot it up nothing happens. The screen stays black and doesn't power on.
The only thing that leads me to believe there's still a chance of it working is that when I plug it into the PC, my PC detects it (although it's unable to install the required drivers for it).
I'd appreciate any help I can get.

intestro said:
I've seen a couple of threads about this but none of them have the same issues as I have or they remain unanswered.
My HTC Sensation (EU version) won't boot up at all. I can't boot it into recovery or bootloader and when charging the light doesn't turn on.
It recently started to randomly reboot and at one point it completely corrupted all files on my SD card. However, it worked ok after I bought a new SD card and the random reboots didn't bother me that much. Today when I woke up however, I saw that it wouldn't respond to me pressing the power button. I also noticed that the charging light wasn't on (it was plugged into the wall overnight).
I tried removing/reinserting the battery, I tried booting into recovery and bootloader, I tried connecting it to my PC and forcing it to boot into bootloader but nothing works. To clear things up, when I try to boot it up nothing happens. The screen stays black and doesn't power on.
The only thing that leads me to believe there's still a chance of it working is that when I plug it into the PC, my PC detects it (although it's unable to install the required drivers for it).
I'd appreciate any help I can get.
Click to expand...
Click to collapse
open a cmd window in your adb and fastboot folder and try this command
adb boot bootloader

rzr86 said:
open a cmd window in your adb and fastboot folder and try this command
adb boot bootloader
Click to expand...
Click to collapse
That command didn't work for me and displayed a wall of text. After looking through it I found a similar command which I tried
adb reboot-bootloader
When I entered that it said that it was starting the daemon on port, that the daemon had started succesfully and then it gives me the error: device not found.

intestro said:
That command didn't work for me and displayed a wall of text. After looking through it I found a similar command which I tried
adb reboot-bootloader
When I entered that it said that it was starting the daemon on port, that the daemon had started succesfully and then it gives me the error: device not found.
Click to expand...
Click to collapse
opps i mean reboot
i don't know why i forgot that
previously you said that it detects it
how it detects it?

When I connect the phone to my PC I hear the sound that windows makes when you connect a USB device.

intestro said:
When I connect the phone to my PC I hear the sound that windows makes when you connect a USB device.
Click to expand...
Click to collapse
charge the device without battery,sim and sdcard for 4-5 hours
put them back and switch it on
see how it goes
if that fails then try to switch on the device with a different battery

rzr86 said:
charge the device without battery,sim and sdcard for 4-5 hours
put them back and switch it on
see how it goes
if that fails then try to switch on the device with a different battery
Click to expand...
Click to collapse
I tried the charging method but it didn't seem to do anything.
I don't have a different battery that fits in there. Can I use a smaller and lower capacity battery as well and just connect the contacts? I don't wanna shortcut anything

intestro said:
I tried the charging method but it didn't seem to do anything.
I don't have a different battery that fits in there. Can I use a smaller and lower capacity battery as well and just connect the contacts? I don't wanna shortcut anything
Click to expand...
Click to collapse
No. Don't even try connecting other battery.
Sent from my HTC Sensation Z710e

MrJukeHardbane said:
No. Don't even try connecting other battery.
Click to expand...
Click to collapse
So are there any options left for me? I've read some stuff about Jtagging but I'm not planning on getting a box or paying someone to do it for me.

[Q] Stuck at bootlogo

Hi,
I got this tablet from a friend, and it's stuck at the boot logo. I've tried hard reset, reset via recovery, nothing seems to work.
How can I flash the latest official rom?
Can't seem to find a tool for it, and Asus suggest to flash with the tablet itself, but that's not possible for now.
Anyone?
Thx!

http://forum.xda-developers.com/showthread.php?t=1688012
Easyflasher to flash TWRP recovery > copy ROM to MicroSD card, flash ROM

Thanks! I can't seem to get him into APX mode, what is the exact procedure?

Connect the tab to USB > PC first
Power Off the Tab
Hold Volume Up & Power
Nothing will appear on the Tab screen, but the PC should sound the USB connect noise / device manager will show it has connected - only takes a few seconds to enter APX mode

I've tried that, doesn't seem to recognize it . Would you help me via IM of some sort?

It`ll be the drivers most likely, open device manager when its connected and in APX mode, and manually update the drivers using the Universal Naked Driver from the Easyflasher site
I don't have any IM installed unfortunately but I`ll help you out here

Ok, that would be wonderful. The problem is, I don't know when it's off. I can't get it to shut down, it keeps rebooting. I'm monitoring dev manager with sound high, but it's not coming up. Cable is working, because it will charge. Using the original cable. (Windows 7 x64)

Best thing to do would be connect it to the PC, then press and hold Power until it shuts off, then try for APX mode - you might even be able to enter APX from a powered on state by holding the same button combo, but Ive not tested that myself
And a cable that charges doesn't automatically mean it will work for Data, they use different pins, some for power and some for data, if the data pins are damaged, it will still charge

I can't seem to get it working . Any other ways to flash it?

Not without being able to get it to boot - you'll need APX mode to do anything in the state it's in now
A bad cable is a common problem though, might be worth grabbing another one from eBay

To bad. I'll try and let it drain till it's empty, and fully charge it then. Just ordered another cable.
Thx for the help!

If the System / Data partitions are corrupted, which generally causes the boot loop, then draining and recharging won't help
Plus be careful not to drain the battery to 0%, their design prevents them from recharging if they hit 0% - many people have had to buy new batteries after not using their tab for a few months and letting it drain completely
Good luck, so long as there is no hardware damage, once you have a working cable it should be pretty straight forward to get TWRP recovery and a new ROM flashed to it
Might be worth trying your current cable on another PC too

Thanks for the headsup! Will try!

Hello everyone,
Not to thread jack but I have a similar problem and instead of opening a new thread I decided to revive this one.
I have a similar problem that my TF101 has been working flawlessly for many years. It is rooted and was running 4.3 ROM. As of a couple of days ago it just won't boot at all. It has been stuck at the NVidia screen and just sits there. I tried to enter recovery mode by using volume(-) + power and the unit presents the TEAMWIN logo and just loops as well by showing the TWRP screen (3 seconds) then going blank for a second then showing TWRP screen again in a cycle.
I downloaded and tried Easyflasher and Brks toolkit and nothing can complete the flash. Tried different installed drivers as well. I can enter MTP mode which the computer can see the device but the manufacturer name and model are not-recognized. I can also enter APX mode but while trying to flash anything I get an error message (error, cannot flash bootloader) and the computer dings (device disconnects).
I have been trying for a days now and have run out of ideas.
Has the unit finally bit the dust? Does any one out there have any more ideas or suggestions on what to try next?
TIA for any help provided.

Anyone with any sort of help on my previous post? Time to retire it for real this time?
TIA
Sent from my VisionX powered SM-N900T.

Jayster0966 said:
Anyone with any sort of help on my previous post? Time to retire it for real this time?
TIA
Sent from my VisionX powered SM-N900T.
Click to expand...
Click to collapse
Have you tried a different / new cable in-case that's the reason all the flashing attempts and computer recognising the unit are failing ?