I've searched but apparently it seems like most of the answers have been deleted or redacted.
My problem...
I was just given a Yoga Tab 2 from my sister who has given up on trying to fix it.
The tab was on 5.01 and rooted when she got a system update. She ran the update but now the tablet freezes during/after the boot animation.
It will go into fastboot but is not recognized by ADB.
She tried to install the original Lollipop firmware through recovery but ended up getting a system 7 error.
This is exactly what I see when in the bootloader screen
FASTBOOT MODE
PRODUCT_NAME - YT2
VARIANT - YOGA Tab1
HW_VERSION -
BOOTLOADER VERSION - unknown
IFWI VERSION - Blade_21.x64.0005.R00.1504101447 FFD8_X64_R_
SERIAL NUMBER - BaytrailD454B***
SIGNING - ?
SECURE_BOOT - ?
E: No valid installer medium found
I know nothing about Lenovo and how they do things but I know that with HTC you have to go back to 100% locked and stock before you can install an OTA. If you do try the OTA usually just won't install but unfortunately this thing seems to be at least soft bricked.
Is there a way for me to maybe roll back? I've read about people going back to KK in order to get the LP OTA but all links to the KK firmware are gone.
Thanks a lot, I appreciate any help I can get...
BTW, She is under warranty but of course she was rooted and is worried that repair will cost her almost as much as she paid for the Tab when they realize and void her warranty.
If its the same as the 1050f try these files.
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo do not bother about the warning with this one, its something to do with its size, just download it.
corasman said:
If its the same as the 1050f try these files.
http://tinyurl.com/zmmaww5
http://tinyurl.com/zgt7sjo do not bother about the warning with this one, its something to do with its size, just download it.
Click to expand...
Click to collapse
Thank you. I used the Restore KitKat Bios you posted along with an 830F specific KitKat firmware from the Russian Lenove site. Worked fine after editing the flash.xml file to allow for a larger system.img file.
The tablet is now back from the dead. Unfortunately it gets the 5.0 update but fails in the Lenovo Recovery when trying to flash the OTA. It gets to 100%, stays like that for a bit and then a blue X saying flash failed. After that I'm back to a black screen and have to reflash the kitkat firmware to get up and running again.
I have no idea why the OTA flash constantly fails but I guess I have to do a bit more research and hope I can get her up to date.
Did you set the country code , without setting it updates fail.
Look at this advice from ionioni to me about setting the code
http://forum.xda-developers.com/thinkpad-tablet/general/set-country-code-t3308024
corasman said:
Did you set the country code , without setting it updates fail.
Look at this advice from ionioni to me about setting the code
http://forum.xda-developers.com/thinkpad-tablet/general/set-country-code-t3308024
Click to expand...
Click to collapse
Outstanding!!! I entered the code in contacts and it gave me a menu of different countries to choose from. I Chose US and she rebooted, went into recovery, ran a bit and rebooted into another fresh install which looked completely different. We're talking different wallpaper, and different apps. After that it successfully installed 4 or 5 OTAs and as far as I can tell it is now completely up to date!
Android Version is 5.01
Build is S100250-160119
Kernel Version is 3.10.20-x86_64byt-g9f7fad7
Security patch is dated 2016-02-01
I'll wait a few days before I root and install Xposed just to be 100% certain it's up to date.
Of course my sister will probably ask for it back now.
Either way, THANK YOU VERY MUCH corasman!!! Your help has been invaluable!
I am so pleased it worked for you, ionioni helped me so much and now I am trying to do the same for others.
Hi all,
I finally managed to get a Nougat ROM running on my device - except for the camera. It keeps showing a black screen (closes and pops up in intervals of about 1s). I of course searched the forum but it looked like noone has really managed to find a reliable solution. First some background for my device: VNS-L31 (Dual Sim) which was running on fully stock/fully working C432B160 firmware (no root, locked bootloader, after factory reset) and then upgraded to Nougat C432B370 using FirmwareFinder (FullOTA-MF-PV). Installation worked fine, everything running as expected except for the camera - as said. I exactly followed the steps outlined in this thread here: https://forum.xda-developers.com/hu...android-7-emui-5-0-vns-l-cb360-links-t3565117
Factory resetting after upgrading doesn't solve the issue. After upgrading to B370, I also updated to C432B388 - but to no avail. What I find a little strange is this: Connecting the device to the computer and investigating the device info correctly shows build/device/manufacturer etc. However, in build.prop it shows information about the NRD90M test-keys release with generic_a15 device. Could this hint at some issue? Also, checking the device info with
Code:
*#*#2846579#*#*
shows this: Manufacture information: NEMO_L21E_VB. I actually expected something with "L31" there - but well, I also don't really know what this specific thing stands for.
Now, here are certain things I came across when looking for solutions:
Suggestion by @Meticulus: https://forum.xda-developers.com/showpost.php?p=69990309&postcount=226
I tried the suggestion by Meticulus, but unfortunately it didn't work. Does there exist a modification for newer builds that might work? (I just don't understand why that should help - to me it looks moreorless like restarting the camera).
Some fix in build.prop mentioned by @danielegta : https://forum.xda-developers.com/showpost.php?p=72280947&postcount=7
I have absolutely no idea what the build.prop modification is supposed to be. Can anyone elaborate?
A TWRP related fix: http://www.htcmania.com/showpost.php?p=25093316&postcount=31
A bit afraid to try the TWRP fix by BadWolf. It seems to be for B328 builds... So I am a bit unsure whether I should try it on newer build. According to members in the German android-hilfe.de forum, it once solved these issues, but as said for older builds.
Edit: I tried the fix on B370 but it has no effect.
Use the fix in #3, but reflash system.img if the fix doesn't help: https://forum.xda-developers.com/showpost.php?p=70069246&postcount=26
Unfortunately this also didn't work for me
Use TWRP-flashable .zip files as given in this thread here: https://forum.xda-developers.com/huawei-p9lite/how-to/nougat-official-firmware-t3512932
I tried this today, but unfortunately it ends up in the same state as I was when upgrading B160 -> B370 using Firmware Finder. Everything except for the camera works.
Edit: I notice that in TWRP there are always errors about not being able to mount /data and /cust. Is this normal or does it hint at some error/malfunction when updating via flashable zip?
Use TWRP-flashable .zip as in #5 but instead of flashing the two .zip without restarting the device, first flash update.zip, then restart phone, flash Nougat TWRP, flash update_data_full_VNS_Lxx_xx_xx.zip as described in this post: https://forum.xda-developers.com/showpost.php?p=70704697&postcount=7
Tried this in the following way: stock MM -> unlock bootloader and flash TWRP -> flash update.zip -> flash Nougat TWRP -> flash update_data_. Doesn't help. Also I cannot confirm what I read somewhere here on xda (some user mentioned that his camera was working when he only flashed the update.zip - this is not true for me).
Other things I tried for uprading the OS that are not necessarily meant to fix the camera issue, but might:
Use B336 as intermediate step: B160 => B336 => B370 (=> B388) as suggested by @vozilo here: https://forum.xda-developers.com/huawei-p9lite/how-to/how-to-b388-nougat-maybe-b381-guide-t3612072
Unfortunately this does not solve the issue. The camera doesn't work in any of the versions flashed after B160.
Go from B160 direcly to B388: didn't help
Does anyone know of something else that might help or could someone maybe comment on the "known" fixes, especially if there might be some changes that could be done to commands/build.prop or even local.prop that eventually help?
Thank you very much,
theluk
_theluk_ said:
Hi all,
I finally managed to get a Nougat ROM running on my device - except for the camera. It keeps showing a black screen (closes and pops up in intervals of about 1s). I of course searched the forum but it looked like noone has really managed to find a solution. First some background for my device: VNS-L31 (Dual Sim) which was running on fully stock/fully working C432B160 firmware and then upgraded to Nougat C432B370 using FirmwareFinder. Installation worked fine, everything running as expected except for the camera as said. I exactly followed the steps outlined in this thread here: https://forum.xda-developers.com/hu...android-7-emui-5-0-vns-l-cb360-links-t3565117
Factory resetting doesn't solve the issue. Afterwards, I also updated to C432B388 to no avail. What I find a little strange is this: Connecting the device to the computer and investigating the device info correctly shows build/device/manufacturer etc. However, in build.prop it shows information about the NRD90M test-keys release with generic_a15 device. Also, checking the device info with shows this: Manufacture information: NEMO_L21E_VB. I actually expected something with "L31" there - but well, I also don't really know what this specific thing stands for.
Now, here are certain things I came across when looking for solutions:
Suggestion by Meticulus: https://forum.xda-developers.com/showpost.php?p=69990309&postcount=226
I tried the suggestion by Meticulus, but unfortunately it didn't work. Does there exist a modification for newer builds that might work? (I just don't understand why that should help - to me it looks moreorless like restarting the camera).
Some fix in build.prop: https://forum.xda-developers.com/showpost.php?p=72280947&postcount=7
I have absolutely no idea what the build.prop modification is supposed to be. Can anyone elaborate?
A TWRP related fix: http://www.htcmania.com/showpost.php?p=25093316&postcount=31
A bit afraid to try the TWRP fix by BadWolf. It seems to be for B328 builds... So I am a bit unsure whether I should try it on newer build. According to members in the German android-hilfe.de forum, it once solved these issues, but as said for older builds.
Does anyone know of something that might help or could someone maybe comment on the "known" fixes?
Thank you very much,
theluk
Click to expand...
Click to collapse
I had the same problem, and i fixed it by (un)rooting and (un)rooting again
Could you please elaborate a little bit more on what you exactly did? Because for me I was fully stock (including locked bootloader) when upgrading from B160 to B370. Right after the upgrade finished I did a factory reset and the problem already appeared. Are you suggesting to root, unroot and root again? I mean I can try, but I don't see why this could help, so please let me know if I got your point correctly
_theluk_ said:
Could you please elaborate a little bit more on what you exactly did? Because for me I was fully stock (including locked bootloader) when upgrading from B160 to B370. Right after the upgrade finished I did a factory reset and the problem already appeared. Are you suggesting to root, unroot and root again? I mean I can try, but I don't see why this could help, so please let me know if I got your point correctly
Click to expand...
Click to collapse
Ok so usually u should upgrade like 160>b336>b370... The problem might be that you missed a step, not sure though. Try to factory reset first, then go back to b160 and to b336 and then to b370
Unfortunately your suggestion didn't work for me. But it also looks like FF didn't "send" all of the update package to the updater. I chose the 1.6GB FullOTA-MF-PV for B336 but in the system updater it only downloaded 1.2GB. I suspect the data update wasn't downloaded which surely caused issues. Will have to try that again, I guess
_theluk_ said:
Unfortunately your suggestion didn't work for me. But it also looks like FF didn't "send" all of the update package to the updater. I chose the 1.6GB FullOTA-MF-PV for B336 but in the system updater it only downloaded 1.2GB. I suspect the data update wasn't downloaded which surely caused issues. Will have to try that again, I guess
Click to expand...
Click to collapse
try updating through the stock updater
mjz2cool said:
try updating through the stock updater
Click to expand...
Click to collapse
Unfortunately the stock updater doesn't show any updates. So I have to enforce this by using the proxy method provided in Firmware Finder. As I understood this is the "fully" official way of updating, since it does use the "system update" feature provided inside settings of the phone. I will try it again later today to see what could've gone wrong. Maybe I'll just try one of the other B336 firmwares that are listed as FullOTA in FF.
Major update to OP - including new stuff and new information about what I tried. Any other suggestions? I am out of ideas for now and will probably have to live with MM until Huawei has solved this issue
After a suggestion to try VNS-L21 firmware I did, after flashing the corresponding oeminfo. And indeed this worked nicely. Upgrading to Nougat B370 worked and camera is working as well.
_theluk_ said:
after flashing the corresponding oeminfo
Click to expand...
Click to collapse
Hello,
Sorry but I'm a noob, can you explain to me what do you mean by "flashing the corresponding oeminfo" ? Does it mean you had to somehow "trick" your phone so it believes it's L21 instead of L31 or something ?
I have the same problem on the phone of my girlfriend (although I don't recall it's a dual sim one), I'd really like to solve this.
Thank you
_theluk_ said:
...
Suggestion by @Meticulus: https://forum.xda-developers.com/showpost.php?p=69990309&postcount=226
I tried the suggestion by Meticulus, but unfortunately it didn't work. Does there exist a modification for newer builds that might work? (I just don't understand why that should help - to me it looks moreorless like restarting the camera).
...
Click to expand...
Click to collapse
Ah, one of number of my statements taken out of context. When I worked on CM13, initially only the P9 Lite was supported. After a NEMO user tested this, which was proof of concept that the nemo camera could work on my p9 lite ROM, I added support for NEMO in my AOSP ROMs. So, the reason this helped was that it restarted the camera to work with NEMO and not VENUS, for which it was originally started.
As for your problem, Developer Options -> Take Bug Report ->FULL and post?
I tried flashing a patched kernel to fix Magisk, but it looks like it was built on an older firmware and it bricked my device. I looked online and tried to find a flashable zip to return to full stock and start over, but the only one I can find is too old and is failing to flash in RSD Lite. I don't know what firmware version my device had before I started flashing, so I'm looking for anything that's compatible with the recent security updates.
My device is able to get to Fastboot, so I think it can still be saved. Any help would be very much appreciated.
https://androidfilehost.com/?fid=818222786056035851
Just in case my answer didn't go through. That's the newest I could find.
Thanks. My device has come back from the dead!
UPDATE: I SUCCEEDED IN FIXING IT.
Hello Everyone,
I recently got a Nokia 5, used it for about 2months then the 8.1 Update came which messed up the camera
[camera app always crashing]; It was working perfectly before I updated to Oreo 8.1 so I decided to change
to Nougat.
I wasnt aware there were protocols to follow before downgrading and then went ahead to Flash Nokia5_Android_8.0_Oreo_v5.220_Update.zip via ADB. It got to (47%) and gave out a sort of error, then exited to reboot the phone, since then my phone has been stuck at "No Command" Screen.
I've tried flashing with December 2017 Update before Flashing Finally with Nougat 7.1 ROM using OST LA 6.0.4, but it stops at a point while flashing o OST saying "Connection Failed, 0xc6da" . I am frustrated and tired plus I have limited data to keep changing roms. Please Can anybody help me out of this nightmare? Please! Please!
Please ask me anything, I'll answer. Thanks in anticipation!!!!
I attached a snapshot of what information my recovery menu has.
Hi,
Big trouble time with my Huawei P8 Lite 2017 (PRA-LX1) after it tried to OTA upgrade to Oreo.
I had not tried anything before - no rooting, no unlock, nothing - and it measerably failed on its own, well done Huawei.
I tried to create a "dload" folder on extSD + adding update.app file etc. it goes up to 5% upgrade then fails..
I found previous methods and posts here on how to unbrick the phone but it requires to unlock the phone and install TWRP etc.
I will bring it back to the store next week and see what they can do, for the moment I bought another phone..
If someone encounters the same problems feel free to post here.
Edit: for the record the attempted methods (thanks Gigi)
- https://forum.xda-developers.com/p8...on/guide-unbrick-huawei-p8-lite-2017-t3766678
- https://forum.xda-developers.com/p8...uide-brick-huawei-p8-lite-2017-maybe-t3816694
Well,I was before on Nougat and had some battery issues so I decided,maybe going to Oreo would solve my issues,so I go ahead and unlock the bootloader and install TWRP,and then it seems I flashed Oreo No Check recovery on Nougat and it displayed the BOOT error.
The only way I fixed my phone was to buy a three day license of DC Phoenix for 20 euros.
I flashed the first version of Nougat on it and then it installed a new version of Nougat through eRecovery,and after a few weeks the Oreo update came,installed it with no issues.
Overall,DC Phoenix might be the only thing that will work,but at least it is guaranteed to work.