A cry for help

[mmounirf]

Hello all,
Firstly I would like to thank all the great people here, I've been struggling for hours with my dead Xperia Z and the amount of dedication and support I've found so far across all the members here is really impressing.

Let me first illustrate my case.
Firstly, I came here to root my phone and install a custom rom ships with Android N 7.1.2 (Resurrection Remix), I did went through all the newbies/how to threads and I did successfully ended up with Android N on my phone

Unfortunately, the device was not working probably in case of incoming or outgoing calls. No ringtone (already selected from Settings >Sound - played and heared), while in call it keeps ending the call unexpectedly, sometimes it feels very laggy that I couldn't even tap on anything. So I decided to give up until I found another rom that ships with Android N (XOSP), after successfully installing the rom, it starts out very smooth and I tested everything and it was ok, until yesterday the same issue still persists plus my device mic is not working no one can hear me while I'm talking neither from a headset mic nor the device mic. Finally I gave up and decided to rollback to the old lolipop stock rom.

Here's comes the current problem:-
1- I did flash 10.7.A.0.222 Customized MEA using flash tool and it's flashed successfully.
2- I'm now stuck with a dead black screen after sony logo.

I tried everything, changed the flashtool version, downloaded other ftf kernel file, used Xperia Companion and non of them worked for me. I did also tried what's listed in here https://forum.xda-developers.com/xperia-z/general/disaster-recovery-getting-z1-zu-z-zl-to-t2229250

I only can boot into fastboot or flashboot mode
I cannot copy files to my phone as it never appears as a storage media in my computer.

Any help will be much appreciated

Sorry for the long post

 

[Zerikwan]

I never had this problem before, but have you try other ftf with lower android version like KK?
I see this problem on someone, everyone of them had this problem when they try to revert back to stock LP from N. Then someone suggest to flash KK ftf. You should try this if you haven't try this.

Sorry if my English is bad.

UPDATE:
when the first 7.0 nougat custom rom came, I'm on 5.1.1 rom with XZDual recovery. I made a backup for this rom and flash the 7.0 N rom only for trial then revert back to stock 5.1.1 that I backup before. Chippa's rom always came with latest built-in recovery so when I upgrade to nougat rom the XZDual recovery also lost (I don't have FOTA recovery, lol).

The step I made to revert back to stock is to do a FULL wipe of the phone (cache, davlik cache, data, system, AND internal storage), not a regular full wipe (without internal storage).
I put my backup stock rom file to my external sdcard (because the internal storage got wiped) and begin to flash, BUT NOT reboot into system, I reboot the phone to recovery instead (because I think the 5.1.1 rom works better with old TWRP so I reboot the phone to recovery first to get the old XZDual recovery).

After phone enter the old TWRP, I do a FULL wipe (cache, davlik, data, system, internal storage) once again to make sure everything OK, then flash the stock rom once again.

aand... it works. I did it 3-4 times to test new build of 7.0 n rom and never have any problem of reverting back.

But, I never test this method on newest 7.1.1 rom or 7.1.2 rom.

since you can't boot on LP rom, then try to flash KK rom.
Just install phone driver, flashtool, and download the KK ftf.
I'm sorry I can't provide you the full instruction because I never had this problem before, but you can search for this on N rom thread (the rom developed by Chippa). There is a guide made by someone on that thread.

 

[mmounirf]

I never had this problem before, but have you try other ftf with lower android version like KK?
I see this problem on someone, everyone of them had this problem when they try to revert back to stock LP from N. Then someone suggest to flash KK ftf. You should try this if you haven't try this.

Sorry if my English is bad.

UPDATE:
when the first 7.0 nougat custom rom came, I'm on 5.1.1 rom with XZDual recovery. I made a backup for this rom and flash the 7.0 N rom only for trial then revert back to stock 5.1.1 that I backup before. Chippa's rom always came with latest built-in recovery so when I upgrade to nougat rom the XZDual recovery also lost (I don't have FOTA recovery, lol).

The step I made to revert back to stock is to do a FULL wipe of the phone (cache, davlik cache, data, system, AND internal storage), not a regular full wipe (without internal storage).
I put my backup stock rom file to my external sdcard (because the internal storage got wiped) and begin to flash, BUT NOT reboot into system, I reboot the phone to recovery instead (because I think the 5.1.1 rom works better with old TWRP so I reboot the phone to recovery first to get the old XZDual recovery).

After phone enter the old TWRP, I do a FULL wipe (cache, davlik, data, system, internal storage) once again to make sure everything OK, then flash the stock rom once again.

aand... it works. I did it 3-4 times to test new build of 7.0 n rom and never have any problem of reverting back.

But, I never test this method on newest 7.1.1 rom or 7.1.2 rom.

since you can't boot on LP rom, then try to flash KK rom.
Just install phone driver, flashtool, and download the KK ftf.
I'm sorry I can't provide you the full instruction because I never had this problem before, but you can search for this on N rom thread (the rom developed by Chippa). There is a guide made by someone on that thread.

Thank you so much for your reply. I will try it out. I really appreciate your contribution and I will keep you updated