Database Users

[Q] Bricked Nexus 4

Hello Guys,
yesterday I restarted my Nexus 4, running the cm-13.0-20160520-NIGHTLY-mako. It stuck at the bootlogo, so I tried to reflash it in the twrp 2.8.7.0 recovery. But I got the error message "E:/ unable to mount /cache".
After that I was trying to solve this issue by wiping the cache, but I got the same error message -> The phone wasn't booting
From now on I did several things to solve my problem. I don't know the exact order.
- I've downloaded the Nexus Root Toolkit from WugFresh -> Tried to use the Flash Stock + Unroot Option with Soft-Bricked/Bootloop status enabled -> I choosed the 5.1.1 Factory Image -> In the cmd window, I get in every point the same error message "Falied (remote: flash write failure) -> I get the same message when I'm trying to manually flash each part of the factory image via fastboot
- Within the Toolkit I also tried to format cache, system and Userdata, but afther this I get the same error when trying to do the step before
- I think also used the Fastboot Flash options, but I'm not sure.
- After that I attempted to flash the cm13.zip via adb-sideload in TWRP. Here is a part from the error message I get:
"(...) could not detect filesystem for /dev/block/platform/msm_sdcc.1/by-name/system, assuming ext4
mount: failed to mount /dev/block/platform/msm_sdcc.1/by-name/system at /system: Invalid argument
unmount of /system failed: no such volume (...)
E: Error executing updater binary in zip 'sideload/package.zip'
E: Unable to mount '/data'
- In TWRP the Internal Storage is shown with 0mb
- Currently only the bootloader is working fine and I also can get a fastboot and adb connection to the phone
-> Loading the recovery is only possible by booting a recovery image in fastboot
Can somebody tell me if it is possible to restore my Nexus 4 and how to do it?
Thank you in advance :fingers-crossed:
PS: I hope I mentioned all the important points. If some information is missing, feel free to ask me.

Did you try to manually flash the latest rom?
Did you try to flash a stock 4.2 rom?
Tried different USB cables and USB ports?

audit13 said:
Did you try to manually flash the latest rom?
Did you try to flash a stock 4.2 rom?
Tried different USB cables and USB ports?
Click to expand...
Click to collapse
Thank you for your answer.
I tried to flash the newest cm13 in TWRP and with adb Sideload. I get the same error.
Also the 4.2 Stock rom doesn't work. Same problem as with the 5.1.1 factory image.
I also switched the cable and the USB ports, but it leads to the same error messages.

Try flashing the userdata.img file in fastboot. As soon as userdata finishes flashing, use the buttons to boot into recovery and perform a factory wipe. User the usedata.img file included with the stock ROM you flashed.

From what I see, your partitions got completely messed up. I reckon if it's fixable at all (assuming your chip ain't dead), the only thing that can fix it is fully reflashing everything via emergency mode. Now I can't seem to find the exact link, but I do know there was a thread on xda with instructions and everything. I'll keep digging around to see if I can find anything and then I'll link it here.

audit13 said:
Try flashing the userdata.img file in fastboot. As soon as userdata finishes flashing, use the buttons to boot into recovery and perform a factory wipe. User the usedata.img file included with the stock ROM you flashed.
Click to expand...
Click to collapse
I get the same error message as always: Falied (remote: flash write failure)
nerotNS said:
From what I see, your partitions got completely messed up. I reckon if it's fixable at all (assuming your chip ain't dead), the only thing that can fix it is fully reflashing everything via emergency mode. Now I can't seem to find the exact link, but I do know there was a thread on xda with instructions and everything. I'll keep digging around to see if I can find anything and then I'll link it here.
Click to expand...
Click to collapse
In Meanwhile I also think that my partitions are messed up. I saw one thread that could help me (http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060), but some of the links are down.
Thank you for your help. :good:

Does the bootloader remain unlocked after rebooting? The emmc chip could be messed up and need replacement.

audit13 said:
Does the bootloader remain unlocked after rebooting? The emmc chip could be messed up and need replacement.
Click to expand...
Click to collapse
Unfortunately yes. After locking the bootloader via fastboot, the bootloader is marked as unlocked after rebooting.
Do I have to change the mainboard?

This confirms that the emmc chip is damaged and can only be fixed via a motherboard swap.
I had similar problems with two nexus 5 phones where I would unlock the bootloader but would always relock on reboot.

audit13 said:
This confirms that the emmc chip is damaged and can only be fixed via a motherboard swap.
I had similar problems with two nexus 5 phones where I would unlock the bootloader but would always relock on reboot.
Click to expand...
Click to collapse
Ok. Doesn't sound very good.
Nevertheless I will try the method of nerotNS, if he finds the thread.

tobi.king said:
I get the same error message as always: Falied (remote: flash write failure)
In Meanwhile I also think that my partitions are messed up. I saw one thread that could help me (http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060), but some of the links are down.
Thank you for your help. :good:
Click to expand...
Click to collapse
Aye that's the thread I've been talking about. And yeah, the links are down for quite a while, I reckon the OP doesn't maintain it anymore. Anyways I used the tool once, I found all the files by Googling for like 4 hours or so - the most difficult one being the .dll file and getting the program itself to run. I'd upload them to you but there were on my C disk on my main rig and that got wiped when I reinstalled Windows :S I'm sure the files are on the net even now tho, I remember getting the .dll file from some Chinese website, Chrome's translator gave me enough info to actually download the file. Once I got it up and running the flash was OK, I've tested the method from that thread myself, the only problem is getting the files from the links that are down. I wish you good luck in your search for them, I know what an awful feeling it is for your nexus to die, my mako is still my daily driver, still kickin' ass
tobi.king said:
Ok. Doesn't sound very good.
Nevertheless I will try the method of nerotNS, if he finds the thread.
Click to expand...
Click to collapse
I did however have to change the motherboard out, since, while the flash was ok, the chip was not, so it didn't help much. I had an issue with my /data partition where it was completely gone, and the while filesystem got messed up, the only thing I could boot to was bootloader and even that only while on charger. Eventually I swapped my motherboard with a friends who didn't need her nexus 4 anymore and now it's ok. I suggest you first attempt the method from that link and if that fails, then you should resort to getting a new motherboard, but imo only if you can get it either dirt cheap or in a way like I did. Caching out around 100$ for a new nexus 4 mb, with phones like nexus 5X 32Gb costing 300$ is not a good investment if you ask me.

nerotNS said:
Aye that's the thread I've been talking about. And yeah, the links are down for quite a while, I reckon the OP doesn't maintain it anymore. Anyways I used the tool once, I found all the files by Googling for like 4 hours or so - the most difficult one being the .dll file and getting the program itself to run. I'd upload them to you but there were on my C disk on my main rig and that got wiped when I reinstalled Windows :S I'm sure the files are on the net even now tho, I remember getting the .dll file from some Chinese website, Chrome's translator gave me enough info to actually download the file. Once I got it up and running the flash was OK, I've tested the method from that thread myself, the only problem is getting the files from the links that are down. I wish you good luck in your search for them, I know what an awful feeling it is for your nexus to die, my mako is still my daily driver, still kickin' ass
I did however have to change the motherboard out, since, while the flash was ok, the chip was not, so it didn't help much. I had an issue with my /data partition where it was completely gone, and the while filesystem got messed up, the only thing I could boot to was bootloader and even that only while on charger. Eventually I swapped my motherboard with a friends who didn't need her nexus 4 anymore and now it's ok. I suggest you first attempt the method from that link and if that fails, then you should resort to getting a new motherboard, but imo only if you can get it either dirt cheap or in a way like I did. Caching out around 100$ for a new nexus 4 mb, with phones like nexus 5X 32Gb costing 300$ is not a good investment if you ask me.
Click to expand...
Click to collapse
I found all the necessary files for doing the method subscribed in the thread, but afther flashing the firmware nothing changed. Only thing that worked was the bootloader, everthing else still wasn't working.
Fortunately I had a broken Nexus 4 from a friend. So I switched both mainboards and my Phone is working again
Thank you for your help.

tobi.king said:
I found all the necessary files for doing the method subscribed in the thread, but afther flashing the firmware nothing changed. Only thing that worked was the bootloader, everthing else still wasn't working.
Fortunately I had a broken Nexus 4 from a friend. So I switched both mainboards and my Phone is working again
Thank you for your help.
Click to expand...
Click to collapse
Awesome, glad to be of service

Just need someone to confirm that I'm SCREWED

I cannot get my phone to accept ADB commands while in the Bootloader. The phone has been doing some strange stuff so I decided to start from scratch and reinstall everything. I tried to use the "Restore to Stock Tool" but once it reboots to the bootloader, I get "device not found" until it gets to the erase commands, phone restarts and is wiped but still on the 6.0 update. I tried "adb devices" and the device shows up but if I try "adb reboot bootloader" it reboots to the bootloader but "adb devices" doesn't see the device anymore. The only thing I can think that could cause this is a corrupt bootloader but how can you correct the problem if you can't flash anything? If someone can suggest anything I can try, I would appreciate it.

6.0 is the current update...
Flash twrp then try flashing a custom ROM. Honestly it sounds like you might be doing something wrong, or maybe a bad USB cable? Keep trying I don't think you're screwed

Steeleio said:
I cannot get my phone to accept ADB commands while in the Bootloader. The phone has been doing some strange stuff so I decided to start from scratch and reinstall everything. I tried to use the "Restore to Stock Tool" but once it reboots to the bootloader, I get "device not found" until it gets to the erase commands, phone restarts and is wiped but still on the 6.0 update. I tried "adb devices" and the device shows up but if I try "adb reboot bootloader" it reboots to the bootloader but "adb devices" doesn't see the device anymore. The only thing I can think that could cause this is a corrupt bootloader but how can you correct the problem if you can't flash anything? If someone can suggest anything I can try, I would appreciate it.
Click to expand...
Click to collapse
Do you still have an custom recovery installed? TWRP?

Steeleio said:
I cannot get my phone to accept ADB commands while in the Bootloader. The phone has been doing some strange stuff so I decided to start from scratch and reinstall everything. I tried to use the "Restore to Stock Tool" but once it reboots to the bootloader, I get "device not found" until it gets to the erase commands, phone restarts and is wiped but still on the 6.0 update. I tried "adb devices" and the device shows up but if I try "adb reboot bootloader" it reboots to the bootloader but "adb devices" doesn't see the device anymore. The only thing I can think that could cause this is a corrupt bootloader but how can you correct the problem if you can't flash anything? If someone can suggest anything I can try, I would appreciate it.
Click to expand...
Click to collapse
Frankly, I would be surprised if your "SCREWED"... it sounds more like your misinformed.
ADB will NEVER work in the bootloader, it isn't intended to, that is what fastboot is for. ADB stands for Android Debugging Bridge because it is the computer's "bridge" to Android, you can think of it as the connection to the operating system, meaning the phone must be booted and running Android for it to work or there is nothing to "bridge" to.
Fastboot is a more limited tool designed to talk to the bootloader and get the phone so that operating system can boot or it can be returned to it's factory state, fastboot cannot talk or "bridge" to Android. They are different and unique tools with different purposes that are used at different times.
This is another case of why one-click or scripting tools are not recommended... even if they work 90% of the time or more, there is still failure due to automation.
I would suggest grabbing the full factory firmware package and install it MANUALLY with the fastboot commands and you will likely be fine. Remember to give it time on the first boot, it can be 20 minutes or more before things look like they are progressing initially.

acejavelin said:
Frankly, I would be surprised if your "SCREWED"... it sounds more like your misinformed.
ADB will NEVER work in the bootloader, it isn't intended to, that is what fastboot is for. ADB stands for Android Debugging Bridge because it is the computer's "bridge" to Android, you can think of it as the connection to the operating system, meaning the phone must be booted and running Android for it to work or there is nothing to "bridge" to.
Fastboot is a more limited tool designed to talk to the bootloader and get the phone so that operating system can boot or it can be returned to it's factory state, fastboot cannot talk or "bridge" to Android. They are different and unique tools with different purposes that are used at different times.
This is another case of why one-click or scripting tools are not recommended... even if they work 90% of the time or more, there is still failure due to automation.
I would suggest grabbing the full factory firmware package and install it MANUALLY with the fastboot commands and you will likely be fine. Remember to give it time on the first boot, it can be 20 minutes or more before things look like they are progressing initially.
Click to expand...
Click to collapse
So I got the computer to recognize the phone. I reset everything back to stock 5.1.1. Once I had it reset, the Bluetooth would not turn on (which was one of my original problems). So I took all the OTAs to get back to 6.0. For some reason when It got to about the 3rd update, it wouldn't complete. It failed but didn't specify a reason. I tried this 2 times without any luck. I left it at the update it was on and used it for a day. The Bluetooth still would not turn on and I was experiencing random data drops which required a reboot. I finally gave up because I was so frustrated. I figured something must be going wrong some hardware inside the phone.

Steeleio said:
So I got the computer to recognize the phone. I reset everything back to stock 5.1.1. Once I had it reset, the Bluetooth would not turn on (which was one of my original problems). So I took all the OTAs to get back to 6.0. For some reason when It got to about the 3rd update, it wouldn't complete. It failed but didn't specify a reason. I tried this 2 times without any luck. I left it at the update it was on and used it for a day. The Bluetooth still would not turn on and I was experiencing random data drops which required a reboot. I finally gave up because I was so frustrated. I figured something must be going wrong some hardware inside the phone.
Click to expand...
Click to collapse
Style or Pure? And why flash 5.1.1 when 6.0 images are available? http://forum.xda-developers.com/moto-x-style/development/pure-firmware-tuff-wip-t3224833
Also, I see many guides don't show flashing the Bluetooth firmware for some reason, so depending on the guide you used might be wrong, always look at the XML file in the image.
fastboot flash bluetooth BTFM.bin
Sent from my XT1575 using Tapatalk

acejavelin said:
Style or Pure? And why flash 5.1.1 when 6.0 images are available? http://forum.xda-developers.com/moto-x-style/development/pure-firmware-tuff-wip-t3224833
Also, I see many guides don't show flashing the Bluetooth firmware for some reason, so depending on the guide you used might be wrong, always look at the XML file in the image.
fastboot flash bluetooth BTFM.bin
Sent from my XT1575 using Tapatalk
Click to expand...
Click to collapse
Pure. I figured if I start all the way over from the beginning it would work out. Like I said, even one of the OTA's failed. I tried flashing the BTFM.bin file but that didn't work either. I will try some other stuff when I get off work today.

So I tried starting from scratch again. I get a "validation failed" when I try to flash the gpt.bin file. Everything else worked. Bluetooth and data are working now. Could I have a corrupt partition that is causing the validation to fail? Does anyone know the partition sizes for the Pure?

Steeleio said:
So I tried starting from scratch again. I get a "validation failed" when I try to flash the gpt.bin file. Everything else worked. Bluetooth and data are working now. Could I have a corrupt partition that is causing the validation to fail? Does anyone know the partition sizes for the Pure?
Click to expand...
Click to collapse
No, in fact it is quite common to get that message with the partition information... Ignore it, if everything else went fine and you having no more problems, your good to go.

[SOLVED] Error installing recent OTA update, anyone help or provide insight?

Went to update "YB1-X90L_170420" and as I have been normally doing I removed root, ran the update, and all was well. It installed fine and worked no problem.
I was then prompted for update "YB1-X90F_USR_S000408_1704201342_WW06_BP_ROW_TO_YB1_X90F_USR_S000426_1705080316_WW06_BP_ROW" So I started the download and when the device reboots it then fails with this string, note the error about the "build fingerprint"
Supported API: 3
Finding update package...
Opening update package...
Verifying update package...
Installing update...
Package expects build fingerprint of Lenovo/yeti_10_row_wifi/yeti:6.0.1/MMB29M/LenovoYB1-X90F_S000408_170420:user/release-keys or Lenovo/yeti_10_row_wifi/yeti:6.0.1/MMB29M/LenovoYB1-X90F_S000426_170508:user/release-keys; this device has Lenovo/yeti_10_row
E:Error in @/cache/recovery/block.map
(Status 7)
Installation aborted.
I foolishly after some googling and not finding enough info opened a chat with Lenovo. The rep asked what the error was and once I showed it said that was just related to my fingerprint scanner .... really?!?!? I knew the chat was a dead spot at this point but tried to state this device has no fingerprint reader, etc.. and so on. Hope they could really tell me what the error was. Anyway the rep told me to 'ignore' the update and just carry on since my device is actually working. They then went on to state they are hardware only on the chat session, which the Lenovo site says nothing about that. They then also told me to take this up with Google as they make Android not Lenovo. So much for warranty helping anything but possibly replacing a physically broken device. Their techs are useless, seriously.
So anywho, as you see in the error the update is trying to apply but looks for "Lenovo/yeti_10_row_wifi" and is finding somewhere (in the update or my device?) "Lenovo/yeti_10_row", notice the missing "wifi" on the end of that. My 'build.prop' and other system files are untouched. I even tried resetting the device. Which after the reset I was able to once again install the "YB1-X90L_170420" update but this next update "YB1-X90F_USR_S000408_1704201342_WW06_BP_ROW_TO_YB1_X90F_USR_S000426_1705080316_WW06_BP_ROW" fails again on that same fingerprint mismatch.
Any clue what I should be looking for here? Has anyone else installed that update successfully?
Will anyone here supply me with the original (or as close as original) clean stock ROM without paying for it? I know I should have backed up with TWRP before I started doing updates, and this may well be my issue, but I didn't and not I can only restore back to an already rooted backup. Though I assume doing a reset of that rooted restore is considered clean (no root or 3rd party anything)?
thanks for any help or ideas!

MarkAllen said:
Went to update "YB1-X90L_170420" and as I have been normally doing I removed root, ran the update, and all was well. It installed fine and worked no problem.
I was then prompted for update "YB1-X90F_USR_S000408_1704201342_WW06_BP_ROW_TO_YB1_X90F_USR_S000426_1705080316_WW06_BP_ROW" So I started the download and it the device reboots then fails with this string, note the error about the "build fingerprint"
Supported API: 3
Finding update package...
Opening update package...
Verifying update package...
Installing update...
Package expects build fingerprint of Lenovo/yeti_10_row_wifi/yeti:6.0.1/MMB29M/LenovoYB1-X90F_S000408_170420:user/release-keys or Lenovo/yeti_10_row_wifi/yeti:6.0.1/MMB29M/LenovoYB1-X90F_S000426_170508:user/release-keys; this device has Lenovo/yeti_10_row
E:Error in @/cache/recovery/block.map
(Status 7)
Installation aborted.
I foolishly after some googling and not finding enough info opened a chat with Lenovo. The rep asked what the error was and once I showed it said that was just related to my fingerprint scanner .... really?!?!? I knew the chat was a dead spot at this point but tried to state this device has no fingerprint reader, etc.. and so on. Hope they could really tell me what the error was. Anyway the rep told me to 'ignore' the update and just carry on since my device is actually working. They then went on to state they are hardware only on the chat session, which the Lenovo site says nothing about that. They then also told me to take this up with Google as they make Android not Lenovo. So much for warranty helping anything but possibly replacing a physically broken device. Their techs are useless, seriously.
So anywho, as you see in the error the update is trying to apply but looks for "Lenovo/yeti_10_row_wifi" and is finding somewhere (in the update or my device?) "Lenovo/yeti_10_row", notice the missing "wifi" on the end of that. My 'build.prop' and other system files are untouched. I even tried resetting the device. Which after the reset I was able to once again install the "YB1-X90L_170420" update but this next update "YB1-X90F_USR_S000408_1704201342_WW06_BP_ROW_TO_YB1_X90F_USR_S000426_1705080316_WW06_BP_ROW" fails again on that same fingerprint mismatch.
Any clue what I should be looking for here? Has anyone else installed that update successfully?
Will anyone here supply me with the original (or as close as original) clean stock ROM without paying for it? I know I should have backed up with TWRP before I started doing updates, and this may well be my issue, but I didn't and not I can only restore back to an already rooted backup. Though I assume doing a reset of that rooted restore is considered clean (no root or 3rd party anything)?
thanks for any help or ideas!
Click to expand...
Click to collapse
From what i recall the fingerprint is what is shown in the buildprop. You could try editing this but i would tread carefully if its just a minor update as it may justmess up your system if there are other mismatches during the update process.
Lenovo technical support is a complete joke, you get much better help here. Lol
Sent from my F5121 using Tapatalk

Nope every line of my build.prop, where listed, has the proper "Lenovo/yeti_10_row_wifi" that the update claims is wrong. I personally think it is this update itself but no confirmation from other users if the update
"YB1-X90F_USR_S000408_1704201342_WW06_BP_ROW_TO_YB1_X90 F_USR_S000426_1705080316_WW06_BP_ROW"
has installed for them yet.
And I certainly knew how far I was *not* going to get with Lenovo but figured it couldn't hurt. I was really trying to get a stock ROM download from them or anywhere. I would love to just revert this to how it was out of the box and start over.

Well for reference I think I finally realize what is causing this (unconfirmed, but sounds feasible).
I did at one time try the "YB1-X90L_USR_S000155_1609272258_WW06_BP_ROW" noted in another thread here from Easy firmware. I figured since it was a free download and others have done it, what could it hurt? lol (I think I know now). Anyway I forget what it was at the time but something with that rom just wasn't right for me and I decided to restore back to my TWRP backup I had made. I'm assuming my backup doesn't overwrite something that "L" version rom did and leaves some residue that reports itself as the "L" model now?
Anyway that is the only thing to me that makes sense to me that could be happening. Of course I have no original stock rom with IMG files to flash again to fix this. :/
Can anyone here confirm Easy Firmware is safe to use? Can anyone confirm their YB1-X90F rom is really that models rom?

MarkAllen said:
Well for reference I think I finally realize what is causing this (unconfirmed, but sounds feasible).
I did at one time try the "YB1-X90L_USR_S000155_1609272258_WW06_BP_ROW" noted in another thread here from Easy firmware. I figured since it was a free download and others have done it, what could it hurt? lol (I think I know now). Anyway I forget what it was at the time but something with that rom just wasn't right for me and I decided to restore back to my TWRP backup I had made. I'm assuming my backup doesn't overwrite something that "L" version rom did and leaves some residue that reports itself as the "L" model now?
Anyway that is the only thing to me that makes sense to me that could be happening. Of course I have no original stock rom with IMG files to flash again to fix this. :/
Can anyone here confirm Easy Firmware is safe to use? Can anyone confirm their YB1-X90F rom is really that models rom?
Click to expand...
Click to collapse
Hi,
I registered for the free account. Had to email there support team to get it activate as there were problems their end. The 90F firmwares were not in the free tier so I paid the $15 through paypal to be safe, and got the 90F firmware fine. It was old and I had to run a lot of updates to get it up to date. But it got everything back to how it should be.
I blame Lenovo that we have to jump through theese hoops, but the files are legit.

Broomfundel said:
Hi,
I registered for the free account. Had to email there support team to get it activate as there were problems their end. The 90F firmwares were not in the free tier so I paid the $15 through paypal to be safe, and got the 90F firmware fine. It was old and I had to run a lot of updates to get it up to date. But it got everything back to how it should be.
I blame Lenovo that we have to jump through theese hoops, but the files are legit.
Click to expand...
Click to collapse
Thanks for that confirmation! I did end up getting a registered account ($15) used Paypal and all looked good. I ended up downloading two versions of firmware. Initially I thought I would start with the oldest knowing many updates awaited but really wanted to be sure in erasing all my previous steps just in case it didn't work or the same thing happened again.
Used "YB1-X90F_USR_S000036_1607280616_WW6_BP_ROW-flashfiles.zip" from Easy Firmware. I opted to follow the included "installer.cmd" but did not do the "unlock" or "lock" as I already was unlocked of course and did not want to lock it again. When it completed I first noted my Halo keyboard not working and things were in Chinese here and there. This post resolved both items (thanks vimalbhimani!). Pretty sure that was because I formatted all the various partitions including "country", duh. Sadly however this version was showing no further OTA updates were available at all. Maybe Lenovo has deleted some of the really old OTA downloads and they are no longer available? Not sure.
I then installed the most recent rom "YB1-X90F_USR_S000196_1611040312_WW06_BP_ROW-flashfiles.zip". This time I did not format and only flashed this newer roms boot, bootloader, factory, recovery, and system images. After the system was backup everything was in great shape and updates were available. I made a TWRP backup straight away. Then I let the first and second updates listed below download and install via OTA and had no issues. The final two I opted to save time and installed using the standard recovery from my SD card after I downloaded them from my PC. Here are direct links to those if anyone wants them and they are in order of install (descending) based on already having "YB1-X90F_USR_S000196_161104"
http://tabdl.ota.lenovomm.com/dls/v...S000239_1612091428_WW06_BP_ROW_WCAC703BC6.zip
http://tabdl.ota.lenovomm.com/dls/v...S000340_1702251540_WW06_BP_ROW_WC365253B3.zip
http://tabdl.ota.lenovomm.com/dls/v6/YB1-X90F_170420_WC76FD00EF.zip
http://tabdl.ota.lenovomm.com/dls/v...S000426_1705080316_WW06_BP_ROW_WC80C2A0F2.zip (this is the failed update that incited this thread)
All updates went great and all is well at this point. Made another TWRP backup and I plan to root again now and see if any upcoming updates later have some issue?

I just wanted to report back here if anyone was interested that I unrooted, updated the June OTA update, and was able to root again without issue.

i got the same error message and now i'm stuck. I cant install any updates and so i bought a account from easy-firmware to get the firmware ... the firmware: YB1-X90F_USR_S000036_1607280616_WW6_BP_ROW-flashfiles.zip
doesnt not work with twrp or the stock recovery... it tells me "zip file is corupt"
@MarkAllen: Can you provide a guide how you got back to the stock rom? just flashing the zips doesnt work....
i really need help...

FreddeHamm said:
i got the same error message and now i'm stuck. I cant install any updates and so i bought a account from easy-firmware to get the firmware ... the firmware: YB1-X90F_USR_S000036_1607280616_WW6_BP_ROW-flashfiles.zip
doesnt not work with twrp or the stock recovery... it tells me "zip file is corupt"
@MarkAllen: Can you provide a guide how you got back to the stock rom? just flashing the zips doesnt work....
i really need help...
Click to expand...
Click to collapse
You cannot flash the ZIP file with TWRP or stock recovery. You have to unzip the file and then flash each IMG file that you need manually while in fastboot mode (there are seven of them).
**** IF YOU FOLLOW THESE DIRECTIONS IT IS NO ONES FAULT BUT YOUR OWN IF IT SCREWS UP SOMETHING!!! ****
**** WILL TRY TO HELP PROVIDE INFO IF I CAN BUT CANNOT GUARANTEE ANYTHING. ALSO THIS ERASE ALL YOUR DATA ****
First be aware as noted in the previous post above that I tried using "YB1-X90F_USR_S000036_1607280616_WW6_BP_ROW-flashfiles.zip" intially and it worked fine to get me back up and running but once I was done no new OTA updates were showing at all. No clue why so I ended up doing it again but used the ROM named "YB1-X90F_USR_S000196_1611040312_WW06_BP_ROW-flashfiles.zip". Also note I had erased my "country" partition and flashed "country.img" which requires the info posted by vimalbhimani again linked above in my previous post. It has to be used to correct for your country, no biggie at all and worked fine for myself.
1) Unzip the ROM you downloaded to a folder on your PC
2) From command prompt go to that folder
3) Make sure from the command prompt that ADB and fastboot commands are working properly
4) Put your tablet in fastboot mode ("adb reboot bootloader")
(these next commands are directly from the "install.cmd" included with the ROM from EasyFW, I just opted to run them manually one at a time in order and I omitted the unlock and lock commands)
fastboot flash gpt gpt.bin
fastboot erase misc
fastboot erase persistent
fastboot erase frp
fastboot erase metadata
fastboot format config
fastboot format country
fastboot format cache
fastboot format data
fastboot format factory
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash config config.img
fastboot flash country country.img
fastboot flash system system.img
fastboot flash bootloader bootloader
fastboot flash oemvars bootloader_policy-oemvars.txt
fastboot continue
That's it. Minus the Intel error code 03 for being unlocked, it should be a normal out of the box setup when it boots back up into Android.
good luck!

People that are looking for the YB1-X90F_USR_S000196_1611040312_WW06_BP_ROW-flashfiles.zip may want to take a look at this post.
In contrast to my experiences with devices made by other OEMs, it seems like the files can directly be used for downgrading the Yoga Book if you're currently using a newer version.

Moved...

[SOLVED] Cascading failures leading to bootloop and softbrick

Hello all. I am about done with this phone. Let me give you a quick timeline.
I had a bootloader error, so I flashed the NPN25.137-35 images to get it working
I used it for about 1 week, installing all of the OTA security updates
One morning, my phone had restarted (I know because "You must enter your pattern after a restart")
Over the course of this day, google apps starting force closing and opening some of them would soft reboot the phone.
The next day, random apps were doing it too
Finally, after one crash, the OS never came back up, it was bootlooping
Upon a hard restart, the phone only boots into bootloader.
This is where I am now. I have downloaded NPN...35-5, NPNS...93-10, and NPNS...92.14. Unfortunately, trying to flash any of these give me a "prevaildation failed security update downgrade" error on every partition I try to flash. The phone just bootloops when I try to restart it.
Things I have tried:
Using fastboot to manually install one of the 3 packages mentioned above.
Using a toolkit to automate the install of the 3 packages.
Using Motorola Device Manager (Never got it to launch)
Flashing the blankflash bin (No usable image file found)
Android OEM unlock setting was not set before this crash, so I cannot unlock the bootloader.
Praying to various deities.
Unzipping the packages, editing the *info.txt file into androidinfo.txt and rezipping to use as an update package (Invalid info.txt error)
I have no idea what to do next. I find it frustrating that Motorola doesn't differentiate between 32GB, 64GB, Amazon ads, no amazon ads, US, EU, or indian variant in it's model numbers! Everything is just "XT1687" and none of the update files are named with words, so knowing what the hell I'm flashing is impossible.
So, frustrations aside, does anyone have any suggestions as to how I can get this phone working again. On a side note, the only thing that I can think of that would cause such a cascading failure from Stock OS is RAM or Storage corruption / failing. Any thoughts on that as well?
=~=~=~=~= SOLUTION FOUND =~=~=~=~=
This may not be a good solution for anyone else that has this issue, but recently Oreo came out and the OTA update was captured. I was able to flash the new OTA because it had a higher security level and at least got the phone bootable.

Do you know what software channel you were on? E.g. retus, retla, etc? If your phone was completely up to date with the OTA, then you can't use a firmware version of less than 92-14 or 93-14. Whether or not you use 92 or 93 depends on the channel.
Locked bootloader limits other possibilities unfortunately.

Retus. I can't guarantee it, but that looks familiar to me, like I had seen it somewhere in the "about phone" section. Is there a released Stock image that has the current security patch? I can't find it on XDA and I'm not trusting androidfixfiles.info or a link in a youtube video.

93-14 hasn't been leaked yet. So you'll be stuck for now.

Kilo__ said:
I have no idea what to do next. I find it frustrating that Motorola doesn't differentiate between 32GB, 64GB, Amazon ads, no amazon ads, US, EU, or indian variant in it's model numbers! Everything is just "XT1687" and none of the update files are named with words, so knowing what the hell I'm flashing is impossible.
So, frustrations aside, does anyone have any suggestions as to how I can get this phone working again. On a side note, the only thing that I can think of that would cause such a cascading failure from Stock OS is RAM or Storage corruption / failing. Any thoughts on that as well?
Click to expand...
Click to collapse
As a last resort you might try booting TWRP in fastboot mode, download and flash the TWRP flashable version of NPNS25.137-93-14. and see if that gets you back to a working phone. Just a suggestion. I don't know if it will boot when the bootloader is locked but it is worth a try.

pastorbob62 said:
As a last resort you might try booting TWRP in fastboot mode, download and flash the TWRP flashable version of NPNS25.137-93-14. and see if that gets you back to a working phone. Just a suggestion. I don't know if it will boot when the bootloader is locked but it is worth a try.
Click to expand...
Click to collapse
The phone was completely stock. It has the stock recovery and bootloader.

Kilo__ said:
The phone was completely stock. It has the stock recovery and bootloader.
Click to expand...
Click to collapse
I get that. What I am suggesting is not installing TWRP, but booting it from fastboot, if it is even possible. Given your results trying to flash a ROM I would say not. But what do you have to lose by trying?

pastorbob62 said:
I get that. What I am suggesting is not installing TWRP, but booting it from fastboot, if it is even possible. Given your results trying to flash a ROM I would say not. But what do you have to lose by trying?
Click to expand...
Click to collapse
I've tried that with a locked bootloader myself, it doesn't allow a non-signed image to boot. OP should give it a go as a 'hail Mary' attempt, but I wouldn't be holding my breath.

I've never heard of a phone that was fully stock with no mods or flashing ever done on it getting a bootloader error. The only bootloader error I am aware of is when the bootloader and ROM build are mismatched which doesn't happen unless the phone is being manually flashed. Was the phone on a custom ROM and you tried to return to full stock? Did you purchase the phone used?
If no to both exactly what did you see when you got the bootloader error? What was the message and what was the phone doing?
People who are on full stock with a locked bootloader don't usually flash system images so your story is a little hard for me to understand unless there is more to it. Normally a factory reset would be the logical solution when your phone is acting odd--flashing a system image seems pretty extreme and it sounds like flashing the wrong system image might be the cause of your current problems.

jhs39 said:
I've never heard of a phone that was fully stock with no mods or flashing ever done on it getting a bootloader error. The only bootloader error I am aware of is when the bootloader and ROM build are mismatched which doesn't happen unless the phone is being manually flashed. Was the phone on a custom ROM and you tried to return to full stock? Did you purchase the phone used?
If no to both exactly what did you see when you got the bootloader error? What was the message and what was the phone doing?
People who are on full stock with a locked bootloader don't usually flash system images so your story is a little hard for me to understand unless there is more to it. Normally a factory reset would be the logical solution when your phone is acting odd--flashing a system image seems pretty extreme and it sounds like flashing the wrong system image might be the cause of your current problems.
Click to expand...
Click to collapse
I agree. :good:

While my phone was wholly stock, I am not new to phone rooting or custom ROMS. I bought the phone from someone who was trying to unlock it. They screwed something up and couldn't get the phone to boot. I bought it, flashed the NPN25.137-35 image after reading plenty of XDA posts about it. This one was the Retus / North America stock image. Flashed using the suggested guidelines that are along the lines of "fb_oem_mode ... flash oem oem.bin ... flash partition sparsechunk1.img" (Something like that). That got it running and once booted, it had many OTAs update in quick succession. After about a week the phone started having trouble. Google apps would crash frequently, then non-google apps started crashing and restarting my phone. After one said restart, the phone would only bootloop. I tried rebooting into recovery to do a factory reset and got the bootloader instead. I can go take a look at the bootloader and see if it says it's secure / oem or what

Kilo__ said:
While my phone was wholly stock, I am not new to phone rooting or custom ROMS. I bought the phone from someone who was trying to unlock it. They screwed something up and couldn't get the phone to boot. I bought it, flashed the NPN25.137-35 image after reading plenty of XDA posts about it. This one was the Retus / North America stock image. Flashed using the suggested guidelines that are along the lines of "fb_oem_mode ... flash oem oem.bin ... flash partition sparsechunk1.img" (Something like that). That got it running and once booted, it had many OTAs update in quick succession. After about a week the phone started having trouble. Google apps would crash frequently, then non-google apps started crashing and restarting my phone. After one said restart, the phone would only bootloop. I tried rebooting into recovery to do a factory reset and got the bootloader instead. I can go take a look at the bootloader and see if it says it's secure / oem or what
Click to expand...
Click to collapse
Try flashing just the stock recovery, as it sounds like that is corrupt. Ideally you'd want to get a recovery that was the same build as you were on after all the OTAs had installed. At least you'd hope that that would give you the factory reset option.
If that doesn't work, there's fastboot commands to erase user data, cache, which would be pretty much what a factory reset would do. Hope you had your data backed up.

Oreo OTA came out recently. Someone grabbed the update file and uploaded it. I was able to flash it and get the phone to boot. The verdict is still out on if it'll be stable.

After Pie: Bootloader unlocked & TWRP install didn't work

Hi,
I was really unhappy with Pie and tried to prepare my device for Oreo downgrade.
What I did was
- unlock bootloader
- tried to install TWRP
- mixed something up in that processs
- realized TWRP cannot be installed apparently on Pie right now
- MiFlash seems to be not working as well when trying to install stock rom (says flashing but nothing happens)
Well Pie is running right now, but when trying to lock the bootloader again for future updates, the phones is only showing a black screen.
After that I am trying to unlock bootloader again (fastboot oem unlock) and everything works again, except when I try to boot into recovery ("the system is destroyed" or something like that).
Trying to "hotboot" into TWRP currently is also not working, "unable to mount..." and after that automatically reboots into the system itself.
Any idea how I can either put a standard Pie installation with working recovery and locked bootloader on?
Or how I can maybe install Oreo instead? As I said, the MiFlash tool doesn't do anything (tells me "flashing" but actually doesn't do anything).
Thanks for your help!

cyrrel said:
Hi,
I was really unhappy with Pie and tried to prepare my device for Oreo downgrade.
What I did was
- unlock bootloader
- tried to install TWRP
- mixed something up in that processs
- realized TWRP cannot be installed apparently on Pie right now
- MiFlash seems to be not working as well when trying to install stock rom (says flashing but nothing happens)
Well Pie is running right now, but when trying to lock the bootloader again for future updates, the phones is only showing a black screen.
After that I am trying to unlock bootloader again (fastboot oem unlock) and everything works again, except when I try to boot into recovery ("the system is destroyed" or something like that).
Trying to "hotboot" into TWRP currently is also not working, "unable to mount..." and after that automatically reboots into the system itself.
Any idea how I can either put a standard Pie installation with working recovery and locked bootloader on?
Or how I can maybe install Oreo instead? As I said, the MiFlash tool doesn't do anything (tells me "flashing" but actually doesn't do anything).
Thanks for your help!
Click to expand...
Click to collapse
https://forum.xda-developers.com/mi-a1/development/treble-twrp-installer-treble-manager-t3793637

Hi,
I somehow managed to put 8.1 on and everything is back to normal.
Thanks

cyrrel said:
Hi,
I somehow managed to put 8.1 on and everything is back to normal.
Thanks
Click to expand...
Click to collapse
can you explain us the procedures that you have followed to downgrade. It would be really helpful. i have tried this
method but it didn't work for me. i am facing IMEI 0/no signal issues using this method.
Thanks

well I have done a lot of stuff that made my phone not working anymore because using a wrong .img file and didn'T understand the tutorial (same link you have provided) fully.
But at the end it was quite close to the link you have sent, the MiFlash tool I needed for example to try like 10 times per step until it worked, maybe a bad cable - I don't know.
But finally it was working, after March update without network signal, but with /boot & /efs partitions and Nov fastboot image, it was working.
If you need any more detail for a specific step, you can of course ask and I can check if there was anything special I can remember

cyrrel said:
well I have done a lot of stuff that made my phone not working anymore because using a wrong .img file and didn'T understand the tutorial (same link you have provided) fully.
But at the end it was quite close to the link you have sent, the MiFlash tool I needed for example to try like 10 times per step until it worked, maybe a bad cable - I don't know.
But finally it was working, after March update without network signal, but with /boot & /efs partitions and Nov fastboot image, it was working.
If you need any more detail for a specific step, you can of course ask and I can check if there was anything special I can remember
Click to expand...
Click to collapse
Are your imei & mac same as original? won't the imei/mac get affected by restoring someone else efs?

I don't know about mac, but imei is ok