Unbrick lenovo vibe shot z90a40

Question

I have tried a lot to unbrick my Lenovo Vibe Shot. Now I am helpless and looking for some workable solution:

I used Lenovo Smart Assistant to download a proper firmware so it turned out it is:
z90a40_USR_S363_1606250500_Q202533.1_ROW.zip

I tried to use Lenovo Smart drive assistant to update ROM or Device Rescue, but both wont detect phone. The phone default Lenovo recovery can be loaded by pressing VOL+, VOL- and power button, and then releasing power button
when logo appears. I used an Update.zip in 8GB mem card and used the option: â€˜install update packageâ€™ then it complete the process 100% I was happy that I was going to get my phone unbrick

After trying a lot of things I realized the actual problem is with
partition table of its internal memory, so whenever I try to connect phone
via USB cable to PC and turn it on simply with power button or trying
with fast boot mode (VOL - and VOL + then pressing power),
it shows all the following partitions that are write protected. So is
there any way I can forcefully remove the write protection and delete
all these partitions ??? I have tried with Disk part as well but
no luck. Plz help
PS if some one wants to read more about this problem, plz check
following thread of mine that is still unreplied:
http://forum.xda-developers.com/android/help/unrbick-lenovo-vibe-shot-z90a40-t3505789

— Usman Waheed | Sources

Answer

Actually I bricked my phone a whole lot of times even after my post.
That's because once I knew that it is just soft bricked and I can get it back somehow, I got the confidence
and tried advanced things that bricked my phone again and again.

And it was only the recent time (around 3 weeks ago) that I figured the 100% working 9008 method for my phone.

Actually you have to drain the battery completely out. Then it will get into 9008 mode.
To do it youu need to try turning your phone on again and again so that the battery goes off.

For example:
Press Power button for a few seconds to turn it on.

Or press 3 buttons at same time (VOL+, VOL- and Power), then release only Power button when
you get vibration. Then after 2 seconds release both VOL buttons as well (this is for going to recovery mode).

This way you can drain the battery of the phone completely, and you will know when the battery is all gone when
you press the Power button and the phone will not show any LED light or screen light, it will just vibrate and stay turned off.

Now you connect your phone to a PC in the following way:

If at bricking you you were on Lollipop (Android 5): Pressing VOL+ key and plug the USB cable in without pressing the power button. 9008 will open. Use Qfil to flash the ROM you want.

OR If at bricking you were on Marshmallow (Android 6): Plug the USB cable into the phone, then connect the cable to a PC and exactly at the same time press the power button (sometimes you don't need to press the power button so try with both options). Then if you see 9008 mode in
Qfil, immediately press the Download button in Qfil.

If you see an Qfil error then repeat the above process to get 9008 mode and use miflash instead of Qfil. Miflash worked for me
better than Qfil because Qfil often gives error in between.

And when you get the flashing 100% then phone will either auto restart or you have to restart it manually.
Using Qfil it shows you a message when it is restarting the phone, and I think using miflash it just says process 100% complete.
Then you have to restart the phone yourself.

Remember at this point (after restart) connect your phone charger properly into an electricity power socket instead of to the PC
as the battery was already drained -- you need to charge the device while it shows the long booting process due to the newly flashed ROM.

— Usman Waheed | Sources

Topics