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I bought an Acer a500 tablet a few days ago not knowing how broken it is.
After loads of research and attempting different techniques I still haven't had any progress.
The software issue:
When booting up the tablet, it goes to the black screen with "android system" at the top and power off/ shutting down in the middle of the screen.
Fixes I've tried:
1.
Since I don't know anything about what operating system is on this tablet, I have been blindly flashing different "stock" (from Vache) versions of HC.
--The android logo with gears shows up, the green bar loads but freezes when it gets 1 cm away from finishing.
--After turning off the tablet and booting it up again, "updating bootloader shows up on the upper left hand corner of the screen. Then a message pops up saying "apk installer: all pre processes complete". Then it returns to the black screen.
2.
The tablet will not go into apx mode (using the reset botton at the bottom).---Fixed. I didn't execute the steps properly. Apx mode works fine.
3.
I plugged the tablet into an older windows laptop and the computer could not install the correct drivers to sync with the tablet. Again also my lack of knowledge. I installed drivers from Acer.com
4.
These two guides seem to be exactly what my problem is but I can't seem to make sense of them:
http://forum.xda-developers.com/showthread.php?p=24531880#post24531880
http://forum.xda-developers.com/showthread.php?t=1572622
This is as far as I've gotten.
Other complications:
--The battery is dead. I have to use it while plugged in by the charger.
--Most of the thread that I have looked at use Megaupload as the source of downloading their files.
--The original owner of the tablet will not help me out. As I stated before, I don't know what version android OS was on here before it was bricked and on top of that the original owner won't answer my questions. As far as I know though, this tablet is not rooted or has anything "non-OEM" installed in it. The story goes that this tablet was bricked when the owner tried to "update" it. Before that, it was functioning perfectly.
-----It looks like Darvis is having the same issue and frustrations I'm having but reading his threads makes me think that this tablet is a dead end.
http://forum.xda-developers.com/showthread.php?t=1427983&page=4
http://www.androidtablets.net/forum...32467-please-help-me-unbrick-my-iconia-5.html
If someone could point me in the right direction toward fixing this tablet, I would appreciate it very much.
Thank you for reading my Thread.
KiwiN said:
http://forum.xda-developers.com/showthread.php?t=1572622
Click to expand...
Click to collapse
First off......I hope u didn't pay much for the tablet.
Secondly the guide above looks pretty straight forward but maybe this is one of the ones that has files at megaupload?
I know that the ra recovery and timmydean's files are accessible as I have downloaded both of them.
Maybe someone who has done this previously will chime in and get you the other file if it is indeed unreachable.
Sent from my A500 using xda premium
I would suggest trying to connect the tab to a Windows 7 PC after installing the USB drivers from ACER. Then check if your device appears in the device manager. As long as you have its UID you can flash the tab from the PC with one of the EUU tools - check my signature on "how to revert to 3.0.1" or TimmyDean's thread which offers an EUU with rooted HC 3.2.1 (it's linked in my thread as well).
How exactly did you try to get into APX mode?
p.s. I have the EUU files if you can't access them from the threads links. I can send them to you.
getting into apx mode
When I perform the steps (hold reset + power for 3 secs then release power); the tablet turns on as it usually does. It goes to the Acer screen, then android and back to the black home screen. My computer responds by saying that it is "installing drivers" but it "fails to install drivers". At the same time I have the DND.exe open and it does not recognize my tablet.
I'm trying to follow the instructions from the root 3.2.1 v4 file.
I can't perform the first step where it instructs me to turn on Usb debugging. The problem is that I can't open the settings by clicking the clock. Nothing happens.
I realize that one complication of my tab is that it will not charge. The battery power is below 15% so none of these fixes might not be effective for me. That might be the ultimate problem?
CyaN1de-
I paid $100 for the tablet. As of this moment I feel like I paid too much.
Thank you both for you quick replies. I have to say that most of the problems that I'm having is because of my lack of experience but I'm learning. I hope I fix this tab soon.
if this dont fix it, i'll give you what you paid for it;0
someone posted a while back that a hard reset fixed the android systems screen error
not sure where you're at now but no harm in trying it
Try using hard reset:
1) Turn off your tablet,
2) Rotation lock s to your left;
3) Press Vol+ (which is next to rotation lock) and power on simultaneously
4) As soon as the tablet vibrates you can release the power on button and you
should start to switch rotation lock left and right till you see
Erasing Userdata...
Erasing Cache...
Vol+ is still pressed;
5) The tablet starts to format
6) Your tablet will be as clean as it can be.
Thanks for the suggestion but I didn't accomplish anything by hard resetting it. I've done this many times and nothing has changed.
I haven't given up on unbricking this tablet yet and even though it's frustrating I'm learning from the process. If I decide to sell it, I'll contact you Dibb.
KiwiN said:
.....
When I perform the steps (hold reset + power for 3 secs then release power); the tablet turns on as it usually does. It goes to the Acer screen, then android and back to the black home screen. My computer responds by saying that it is "installing drivers" but it "fails to install drivers". At the same time I have the DND.exe open and it does not recognize my tablet.
Click to expand...
Click to collapse
i've seen the 2 methods u described but i've not seen anyone else have success with it apart from the OP'ers - seems OTT to me but hey if it works for ya...
I've used timmydeans method ALOT on HC it never failed to work and that includes reverting back to HC from ICS - if it doesnt work for your issue then id be tempted to use blackthund3rs APXFlash Tool and civato's HC_ICS_Bootloader zip to flash a new bootloader and rom package on yr tab - but for the moment we'll run with td'sv4 - if drivers fail to install then believe me, its a good sign
try this:
I know you-ve probly done it but u need to do it again:
reboot everything, then reinstall acer drivers (yeh i know)
fire up ya tab but dont connect to yr pc just yet -as you said you
doubt usb debugging in enabled so we'll try another way around it
run the prgb20.exe it will scan for the new image but not find it becos youre disconnected...thats good....
after maybe 5 -7 minutes of scanning for the new image - it will show a
window "cannot detect yr iconia tab"
and instructions for getting into apx mode - go ahead connect usb put the tab into apx BUT don't click next until....
the drivers will try to install, dont let windows search but let me choose
(off memory) choose device and adb or android ph should show up here
the acer boot/recovery drivers should install...maybe even under USB Controllers
once they do and only when they do click next to put tab into:
acer download mode.......
as i said this is worth a go,,,,how about the update.zip have u tried that.....
else the only other way i know is apx flash....ya still need to get into apx
mode and if u cant then ???? sometimes youll try something over and over
and then out of the blue it will work...you'll swear you never did anything different , it jsut worked this time.....
hope you find some joy
Thanks Dibb for your words of wisdom. I've put it aside for now but I'm going to pick it up in the morning.
As addition to what dibb_nz said - Windows 7 would do the trick - I'm almost 100% sure you'll be able to connect in APX mode with the drivers properly installed. Then use one of the EUUs.
Drained battery really looks like the ultimate problem now because as far as I know you cannot charge the tab in APX mode - haven't tried that. Eventually I would suggest to crack the tab open, remove the battery and charge it somewhere - I don't know alternative ways but...may be another tab or you own charger with proper connector ...
http://www.youtube.com/watch?v=xvXihNIdQ1M
p.s. 15% power ... seems enough to flash through the PC...but who knows - don't waste them and get everything you need before starting the procedure.
no probs m8 hope u have better luck tomorrow
if u wanted to try the EC method i have those files if you want them
good luck m8
dibb_nz said:
if drivers fail to install then believe me, its a good sign
try this:
I know you-ve probly done it but u need to do it again:
reboot everything, then reinstall acer drivers (yeh i know)
fire up ya tab but dont connect to yr pc just yet -as you said you
doubt usb debugging in enabled so we'll try another way around it
run the prgb20.exe it will scan for the new image but not find it becos youre disconnected...thats good....
after maybe 5 -7 minutes of scanning for the new image - it will show a
window "cannot detect yr iconia tab"
and instructions for getting into apx mode - go ahead connect usb put the tab into apx BUT don't click next until....
the drivers will try to install, dont let windows search but let me choose
(off memory) choose device and adb or android ph should show up here
the acer boot/recovery drivers should install...maybe even under USB Controllers
once they do and only when they do click next to put tab into:
acer download mode.......
hope you find some joy
Click to expand...
Click to collapse
So I went through all these steps and the TD's V4 tool finishes updating the tab. But then it continues to the same black, android systems screen. And afterwards the tablet won't connect with the computer.
I am currently downloading the update.zip so i'm going to see if that will work.
KiwiN said:
So I went through all these steps and the TD's V4 tool finishes updating the tab. But then it continues to the same black, android systems screen. And afterwards the tablet won't connect with the computer.
I am currently downloading the update.zip so i'm going to see if that will work.
Click to expand...
Click to collapse
do u get on yr tab the big 'PASS' in white leetters or "entering download mode" at all???
think we're beyond update.zip if EUU failed but you can try it -
you can get to apx which is a start - getting a new boot/recovery image on there is the main priority I think...as i posted earlier i've only ever seen a fix for this problem work for 2 people, so on new ground here....
But anyway check out the APXFlash method/walkthru in my sig....all the info is in there and the links to the required files ....do we know if you're on HC or ICS B/L????
I got the word pass; now using recovery mode to flash a rom.
not sure which bootloader I have.
I am using:
Acer_A500_7.006.01_COM_GEN2: http://vacheandroid.com/files/Acer_...1_COM_GEN2.zip
But after it says install from sdcard complete it also give me the message:
E: Can't mount/ dev/block/mm....
E: Can't mount Cache: recovery/log
E: can't mount open cache: recovery/log
E: Can't mount /dev/block/mm...
found this:
dibb_nz said:
yes if you're talking about the stock roms from vaches thread, you need the full rom package - you cant just use an 'update' package as they need a full rom to work properly....
for instance my original HC3.2.1 Stock build is 7.014.15_COM_GEN1
and theres no FULL Rom for 3.2.1, so i have to use the HC 3.2 FULL instead
.....Acer_A500_7.006.03_COM_GEN1.zip
Once flashed, thankfully I recieve the 2 small OTA Updates to get up to 3.2.1 again
Another couple of days the ICS OTA d/l'ed and installed with no probs....
is that clearer or am i making things worse????
Click to expand...
Click to collapse
What I've learned from this whole process is that all of the obstacles I'm facing are due to my lack of knowledge. Thanks for sticking with me Dibb. I can't thank you enough.
KiwiN said:
When I perform the steps (hold reset + power for 3 secs then release power); the tablet turns on as it usually does. It goes to the Acer screen, then android and back to the black home screen.
Click to expand...
Click to collapse
I could never get mine into apx mode with the usb cable plugged in. So try that if you haven't. And it is literally hold reset, then press power, without letting up on the reset, release the power button after 3 seconds (use a watch or timer!) then one more second before you release the reset... It does work, but the timing has to be close. It must have a tenth of seconds or less tolerance. Very picky... I've done it on 2 different a500s so far and I am heading to do another tonight. If it doesn't work I'll be right back!!!
KiwiN said:
I got the word pass; now using recovery mode to flash a rom.
not sure which bootloader I have.
I am using:
Acer_A500_7.006.01_COM_GEN2: http://vacheandroid.com/files/Acer_...1_COM_GEN2.zip
But after it says install from sdcard complete it also give me the message:
E: Can't mount/ dev/block/mm....
E: Can't mount Cache: recovery/log
E: can't mount open cache: recovery/log
E: Can't mount /dev/block/mm...
found this:
What I've learned from this whole process is that all of the obstacles I'm facing are due to my lack of knowledge. Thanks for sticking with me Dibb. I can't thank you enough.
Click to expand...
Click to collapse
Hi m8 Hwya goin - just got home - what's the lay of the land???
Holey motley we just had a good shake....thort was gonna carry on thank fk it stooped, phew, just been awhile since we had one like that, scary
Crikey just as I finished typing "....land"
Back to more important matters..... whr u at m8????
None of the roms I've tried to flash go to completion. I'm stuck at trying to flash different roms from recovery mode. Not much luck with what I've tried but I'm going to try more before I give up.
Are there any particular roms I should try more than once?
Or why am I getting the "error" messages stated earlier?
KiwiN said:
None of the roms I've tried to flash go to completion. I'm stuck at trying to flash different roms from recovery mode. Not much luck with what I've tried but I'm going to try more before I give up.
Are there any particular roms I should try more than once?
Or why am I getting the "error" messages stated earlier?
Click to expand...
Click to collapse
recovery mode???
u need a new boot and recovery image on that thing
the HC EUU based flash arent working even tho u got a PASS on screen after TDv4
So HC based methods arent up to it. You need nvflash/fastboot.
We need ICS with the unlocked bootloader it has access to another level below where HC worked because HC b/l is and always has been locked down.
If ICS cant fix it, I have no idea what will and my offer to buy is off the table!!!!
check out civatos guide and ready yourself for nvflash via zip files in that post or blackthund3rs APXflash tool, with a complete tutorial for using it, all links in my sig.
good luck
Just to chime in with a tip on getting google drivers to work.
When getting any device not recognized, or driver error, generally I go into windows device manager, select the unknown or offending device, update driver, only I choose which driver to use, and ignore the error message where it says "may not be compatible with your device", and use it anyhow.
I get that occassionally when swapping back and forth between devices.
Also, battery not charging and display errors, are usually a sign of EC Power control. So you were on the right track about that. Once you get a rom up and running, if the batt don't charge, then there are some EC flash's you can do from CWM.
Back at it again using BT's nvflash tool. And tablet is still bricked.
I've tried a few different bundles and none allow me to operate the tablet. Everything goes smoothly and I get "pass" at the end of the process. When I go to reboot the tablet, it gets stuck at the black start up screen.
Found another lead: http://forum.xda-developers.com/showthread.php?t=1579490
Sounds like he was in the same situation as I am but has a bit more skills and knowledge dealing with problem solving.
You say you were able to flash roms. So apparently recovery is working OK. Have you tried flashing civato's flexreaper? It has code that will detect whether you bootloader is HC or ICS. You may just be flashing a rom that doesn't match your bootloader... I know I'm jumping into the middle of this, but it's just a thought.
Also, when you did the hardware reset with the rotation lock switch did you get the confirmation that it was, in fact, being wiped?
Failing all that, I'd be willing to take it off your hands for spare parts...
Sent from my A500 using Tapatalk 2
So, i have been tasked with fixing an acer tablet. I have been searching these forums for a few days to try and figure out how to fix this tablet.
The issue is, it sits at the ACER logo screen (this would be an easy fix on my GNEX). Sifting through the threads i decided to post here to help me move this along faster.
I can get the device into the bootloader. I am presented with the following -- Bootloader v0.03.12-ICS: Starting Fastboot USB download protocol. I can not use fastboot as the bootloader is locked and i can not unlock it (from searching i found i need to installed a patched version, and that is where i am running into issues).
I can not figure out his CPUID. Since the system will not boot, i can not use a terminal to get it. this tablet was completely stock so no CWM on it. I thought i had it showing in ADB once, but i have never been able to get it back into that mode. (any tricks, i thought it should work if i am in the bootloader, i installed the driver from acer, but i does not list any devices, tried another usb port).
I have also tried putting an update.zip file on the sd card and booting into stock recovery, but that ends up with an android with the red ! mark above its belly.
so, i ask you guys for some help. Is there any way i can fix this tablet?
EDIT:
when i do a fastboot devices, i just get a ? fastboot. and nothing for ADB
The tablet also responds to fastboot commands, mainly reboot, anything major and it tells me denined (that it is locked)
EDIT2:
I have blackthund3r A500 manager running, i got the tablet into APX mode, at the bottom it says A500 detected in APX mode. When i click Dump dmesg to desktop, it created a file but nothing is filled in it. When i clicked view dmesg, it says - error: device not found.
Also, under device manager i am seeing a device called Acer USB boot-recovery driver. When i get it into bootloader it shows up as a ADB driver.
Thanks
-CGfreak102
I'm going to assume you have an A500 and NOT an A501.
It appears your stock recovery is probably also working, as if it weren't, you'd probably go to APX mode. As it is, you get the Acer screen.
Regardless, here's a list of A500 ICS full update files on my Dev Host server. I've already decrypted, and named each one a little different so you won't get confused. Put one of them (the zip file, DO NOT EXTRACT) on your external SD card. Then power on your tablet holding either PWR & Vol+ , or, PWR & Vol-. Can't remember which for stock recovery. See if the update will install. You'll see some text in the upper left corner, then you can release the buttons.
http://d-h.st/Zf8
http://d-h.st/2cm
http://d-h.st/gw8
http://d-h.st/KXl
Now, you may have to try more than one of these updates. Some work, some don't. But try each one and see if it completes install. This is about the easiest way to begin with.
If it don't work, then probably have to get a linux ubuntu install to get the UID number.
MD
Moscow Desire said:
I'm going to assume you have an A500 and NOT an A501.
It appears your stock recovery is probably also working, as if it weren't, you'd probably go to APX mode. As it is, you get the Acer screen.
Regardless, here's a list of A500 ICS full update files on my Dev Host server. I've already decrypted, and named each one a little different so you won't get confused. Put one of them (the zip file, DO NOT EXTRACT) on your external SD card. Then power on your tablet holding PWR & Vol+. See if the update will install. You'll see some text in the upper left corner, then you can release the buttons.
Now, you may have to try more than one of these updates. Some work, some don't. But try each one and see if it completes install. This is about the easiest way to begin with.
If it don't work, then probably have to get a linux ubuntu install to get the UID number.
MD
Click to expand...
Click to collapse
The updates did not work for me (was I not supposed to change the names of the archives to update.zip?), and I have the exact same issue as the author of this thread (minus the part where he's doing it for someone else, It's my tablet). Is there a way to get the CPU ID on XP? I do not have access to a Ubuntu installed computer, although I have Virtual Box installed on my XP and when I set up Ubuntu on it, it did not work.
thank you
thank you, it worked for me.
i formatted my SD card, and i renamed the file i downloaded with ------> update
i copied it to SD card.
i pressed Power button + Volume button (-)
it took me less than 2 minutes to update.
CGfreak102 said:
So, i have been tasked with fixing an acer tablet. I have been searching these forums for a few days to try and figure out how to fix this tablet.
The issue is, it sits at the ACER logo screen (this would be an easy fix on my GNEX). Sifting through the threads i decided to post here to help me move this along faster.
I can get the device into the bootloader. I am presented with the following -- Bootloader v0.03.12-ICS: Starting Fastboot USB download protocol. I can not use fastboot as the bootloader is locked and i can not unlock it (from searching i found i need to installed a patched version, and that is where i am running into issues).
I can not figure out his CPUID. Since the system will not boot, i can not use a terminal to get it. this tablet was completely stock so no CWM on it. I thought i had it showing in ADB once, but i have never been able to get it back into that mode. (any tricks, i thought it should work if i am in the bootloader, i installed the driver from acer, but i does not list any devices, tried another usb port).
I have also tried putting an update.zip file on the sd card and booting into stock recovery, but that ends up with an android with the red ! mark above its belly.
so, i ask you guys for some help. Is there any way i can fix this tablet?
EDIT:
when i do a fastboot devices, i just get a ? fastboot. and nothing for ADB
The tablet also responds to fastboot commands, mainly reboot, anything major and it tells me denined (that it is locked)
EDIT2:
I have blackthund3r A500 manager running, i got the tablet into APX mode, at the bottom it says A500 detected in APX mode. When i click Dump dmesg to desktop, it created a file but nothing is filled in it. When i clicked view dmesg, it says - error: device not found.
Also, under device manager i am seeing a device called Acer USB boot-recovery driver. When i get it into bootloader it shows up as a ADB driver.
Thanks
-CGfreak102
Click to expand...
Click to collapse
I found a partial solution to the problem. you need to download a file archive called babsector.rar. It has two batch files in it that will basically do the same thing as blackthunder's tool, the only problem being is that the tool won't work for me. The other part of the bad side is that now I need help to flash a kernel onto mine without the tool.
moscow desire said:
i'm going to assume you have an a500 and not an a501.
It appears your stock recovery is probably also working, as if it weren't, you'd probably go to apx mode. As it is, you get the acer screen.
Regardless, here's a list of a500 ics full update files on my dev host server. I've already decrypted, and named each one a little different so you won't get confused. Put one of them (the zip file, do not extract) on your external sd card. Then power on your tablet holding either pwr & vol+ , or, pwr & vol-. Can't remember which for stock recovery. See if the update will install. You'll see some text in the upper left corner, then you can release the buttons.
http://d-h.st/zf8
http://d-h.st/2cm
http://d-h.st/gw8
http://d-h.st/kxl
now, you may have to try more than one of these updates. Some work, some don't. But try each one and see if it completes install. This is about the easiest way to begin with.
If it don't work, then probably have to get a linux ubuntu install to get the uid number.
Md
Click to expand...
Click to collapse
this being a very old thread, any luck on getting new links 4 years later? My acer a500 stuck on the boot screen. Thanks
GizoMot said:
this being a very old thread, any luck on getting new links 4 years later? My acer a500 stuck on the boot screen. Thanks
Click to expand...
Click to collapse
I might have one or two of the files lying around on my computer let me see if I can find them and upload them.
Hello,
I have been asked to troubleshoot an ACER iconia stuck at boot logo. I am not sure if what I read here is applicable to the model I got. Here is what I can read on the label at the back of the tablet :
ACER iconia One 10 B3-A20 Model A5008
FCC ID:HLZA5008 IC: 1754F-A5008
So is "A500" topics relevant for that tablet ? I don't see any topic about "iconia one 10" or "A5008" ...
Thank you for your answers.
Stock firmware reinstalled
Replying to myself !
Found stock firmware from that Acer link, entering model etc.... (change language FR to what you need).
Then copy downloaded file to SD-CARD, and restore firmware from the recovey menu (pressing "Vol Down + Power" to enter.
Then Restart ... Cool.
pled said:
Hello,
I have been asked to troubleshoot an ACER iconia stuck at boot logo. I am not sure if what I read here is applicable to the model I got. Here is what I can read on the label at the back of the tablet :
ACER iconia One 10 B3-A20 Model A5008
FCC ID:HLZA5008 IC: 1754F-A5008
So is "A500" topics relevant for that tablet ? I don't see any topic about "iconia one 10" or "A5008" ...
Thank you for your answers.
Click to expand...
Click to collapse
Hi folks,
So, after little usage due to instability caused by the Lollipop upgrade I hadn't used the TN7 in a while. Yesterday I thought I'd have a go at reconditioning it.
Background: The bootloader has been unlocked, recovery was TWRP, I'd flashed and reflashed stock ROMs of KitKat and Lollipop several times previously. The main problem in Lollipop was that whilst the SD card files were showing up fine in FS Explorer, I couldn't see any of my files or folders when looking at local storage. Also, Google Play Services refused to update (or install using an APK).
Yesterday I grabbed the factory ROM from the nVidia site to do a full factory install and reset. I followed the instructions, flashing the recovery, boot, system, userdata, staging blob and dtb in that order. I then rebooted and...nothing. No power (or so it appears), no boot screen, no ability to get back into the bootloader, nada, zilch. When I read back through the flash commands I noticed that the final part of flashing the system image failed, which could well be the cause - I should have paid more attention.
I've searched all over and tried multiple options to get the TN7 to boot or show some signs of life. I don't even get an LED showing when plugged into a wall socket to charge.
The device doesn't show in fastboot or adb on the Mac. I did however get a small sign of life from Windows. If I hold down the power button for around 10 secs and let go, I can hear the Windows chime of a device connecting, immediately followed by a disconnect sound, the Device Manager updates but shows nothing new.
So my question is: have I completely screwed the pooch, or is there something that can be done to resurrect it?
Cheers for reading,
Gray
Evil Penguin said:
Hi folks,
So, after little usage due to instability caused by the Lollipop upgrade I hadn't used the TN7 in a while. Yesterday I thought I'd have a go at reconditioning it.
Background: The bootloader has been unlocked, recovery was TWRP, I'd flashed and reflashed stock ROMs of KitKat and Lollipop several times previously. The main problem in Lollipop was that whilst the SD card files were showing up fine in FS Explorer, I couldn't see any of my files or folders when looking at local storage. Also, Google Play Services refused to update (or install using an APK).
Yesterday I grabbed the factory ROM from the nVidia site to do a full factory install and reset. I followed the instructions, flashing the recovery, boot, system, userdata, staging blob and dtb in that order. I then rebooted and...nothing. No power (or so it appears), no boot screen, no ability to get back into the bootloader, nada, zilch. When I read back through the flash commands I noticed that the final part of flashing the system image failed, which could well be the cause - I should have paid more attention.
I've searched all over and tried multiple options to get the TN7 to boot or show some signs of life. I don't even get an LED showing when plugged into a wall socket to charge.
The device doesn't show in fastboot or adb on the Mac. I did however get a small sign of life from Windows. If I hold down the power button for around 10 secs and let go, I can hear the Windows chime of a device connecting, immediately followed by a disconnect sound, the Device Manager updates but shows nothing new.
So my question is: have I completely screwed the pooch, or is there something that can be done to resurrect it?
Cheers for reading,
Gray
Click to expand...
Click to collapse
Hi,
It can be fixed via apx mode.
Download drivers and switch to apx mode.
Follow instructions http://mobileviandroid.blogspot.in/2015/07/nvidia-tegra-note-7-apx-images.html?m=1
Remember to change your device serial number as mentioned in instructions.
I also faced the same problem as you are facing now. It fixed. If you need any help further just post. God bless. Hope it helps
DJDON1302 said:
Hi,
It can be fixed via apx mode.
Download drivers and switch to apx mode.
Follow instructions http://mobileviandroid.blogspot.in/2015/07/nvidia-tegra-note-7-apx-images.html?m=1
Remember to change your device serial number as mentioned in instructions.
I also faced the same problem as you are facing now. It fixed. If you need any help further just post. God bless. Hope it helps
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Lol that site ripped my Tutorial! how nice of them, You should of linked the person to https://forum.xda-developers.com/nvidia-tegra-note-7/general/nvidia-tegra-note-7-apx-images-t3149839
Hi Guys,
I am attempting to downgrade a Lenovo Yoga 3 8 "YT3-850F to an earlier firmware in an attempt to remove the frp lock on a Lenovo that upgraded to Marshmellow 6.0.1 and is now locked out. My friends son didn't keep his Google login details and after a factory reset this Lenovo is locked.
I've downloaded the 5.1 version via the Lenovo forums which apparently works YT3-850F_USR_S000025_1510160911_Q1241_ROW_factory_update.zip but when I try and install in via sd card I get the Android man flashing between black screen and the android man but the flash does not seem to happen.
I am getting an error when flashing:
finding update package
opening update package
e:failed to mount /dev/block/mmcblk1p1
e:remount block devices
e:failed to mount /sdcard
I'm not sure if this is a red herring as I don't always get the message but when I hold the volume up key and the power button the tab goes straight into flash mode and not the recovery screen. Also the only way out is to eject the sd card and then the recovery screen reappears and this is when I sometimes can see the message.
I have tried different sd cards and refomatted them in different ways ie windows, android, minitools etc.
Should I attempt to flash the rom via abd? Can I do this on a tablet that is locked with frp?
Any help gratefully appreciated
Al
I've been looking into further ways of installing the rom.
When I boot into recovery mode there is the option to update via abd.
When I select this option I can see the Tablet when I select adb devices in the command window.
Would this option allow me to install the YT3-850F_USR_S000025_1510160911_Q1241_ROW_factory_update.zip firmware or would it brick the device as it is currently on MM6.0.1?
cheers
Al
Update: Finally got it sorted.
The sd cards that I was using where either too large 8gb and 16gb or hi speed (not sure which)
Out of desperation I gave it one further attempt with an old 2gb sd card and it flashed
The next problem I had was it was taking an update immediately to 0027 and this was preventing me from doing the frp bypass.
I re-flashed 0025 and immediately after connecting to the internet I disconnected the lead but reconnected at times to allow me into Settings and enable developer mode and usb debugging. Once this was complete it started 0027 and allowed me to setup a new google account.
I hope this helps future people who are in the same boat.
Al
Guide for this procedure, please.
althetaff said:
Update: Finally got it sorted.
The sd cards that I was using where either too large 8gb and 16gb or hi speed (not sure which)
Out of desperation I gave it one further attempt with an old 2gb sd card and it flashed
The next problem I had was it was taking an update immediately to 0027 and this was preventing me from doing the frp bypass.
I re-flashed 0025 and immediately after connecting to the internet I disconnected the lead but reconnected at times to allow me into Settings and enable developer mode and usb debugging. Once this was complete it started 0027 and allowed me to setup a new google account.
I hope this helps future people who are in the same boat.
Al
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How is it going man, I know it has been a year since your post. However, would you be so kind of posting the procedure you followed, also could you upload the firmware, please.
I know is too much to ask, but I was not able to find a solution on how to downgrade.
Im an Idiot. I went to twrp recovery and wiped everything, since I wanted to install a higher version of the Samsung tab e, and even when twrp told me that there was no OS installed, I rebooted anyways. I was new to this all thing, and had no idea what exactly that meant and thought, 'What could go wrong?' . . . I just wanted a higher device model, man.
Ugh. Now im stuck in the 'Powered by Android' logo screen, and cant boot into recovery or Download mode.
- What's even worse was that I didn't even enable USB Debugging so Adb is out.
- However, it is Rooted, if that even helps.
- Trying to use the Samsung 300k tool to force enter download mode ends up with 'Write file function failed (error 995)'
- My sibling has the same device model as me, but using T Flash via Odin and my 32GB micro SD card doesn't have a reaction to my device. (Or maybe im doing it wrong, since I don't see anything in the sd card when I plug it to the computer)
- Tablet gets recognized via Odin and Computer, but only as 'MTP USB Device', and in Devices, it is in Unspecified as 'Samsung Android'
- Only good thing that came out of this was the info that I had obtained over the past few days that has shocked my siblings as to why I have this much knowledge over Samsung devices and its functions (AKA I feel cool)
But honestly, at this point I am at a loss of what to do, and will not be surprised if I have to get a USB jig to force it to download mode (my only other option left), or take it to a service center to get it fixed. (the other option I have)
But if there is something you guys are aware of, that I had not tried yet, Please guide me.
Anybody?
norakana said:
Anybody?
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The simplest way to get an operating system again is to put the ZIP file on a working MicroSD card and put it in your tablet, Then boot into the boot loader and choose to install the file by choosing the external micro sd card.
If you're stuck on a boot screen or download, get out of it by holding the power key + volume down, until the tablet resets.
Note for the future:
always backup your device to an external MicroSD card before deleting your existing operating system, or installing a new one.