[Q] how to go to recovery mod on z2 - Xperia Z2 Q&A, Help & Troubleshooting

Hey guys how can I go to recovery mod on z2.?
And if I flash any custom rom then how can I back to stock rom.?
And need to unlock bootloader to flash custom rom.? How?

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There are a few ways to enter recovery mode on the Z2.
1) Install a recovery for locked bootloader;
How to:
1) Root your phone (if you are on 4.4.2 use a rooting tool. If you are on 4.4.4 you will have to downgrade to 4.4.2, root that and then install a pre-rooted ROM through recovery).
2) Install busybox (you can find this in the play store).
3) Run the installer by [NUT] to get recovery for locked bootloader (this an be found in the cross device development section).
2) Install a recovery for unlocked bootloader;
How to:
1) Check if your bootloader can be unlocked by going to you phone keypad and typing *#*#3738423#*#*. This will bring up the service menu, Tap Service Info, Tap Configuration, then look to the rooting status. Under that it will say either Bootloader Unlock Allowed: Yes or Bootloader Unlock Allowed: No. If it says yes you can carry on, if it says no you can only use recovery for locked bootloader.
2) Root your phone and back up you TA partition (tool can be found in the Cross Device Development section).
3) Unlock your bootloader by following the Sony guide (NOTE: This WILL wipe your internal storage, so please make a back up of everything.
4) Install a custom kernel what has recovery embedded into it.
If you flash a custom ROM and wish to revert back to stock the easiest and safest way is to flash the ftf firmware file (these can be found in the Z2 general section) with flashtool (this can be found in the cross device development section). If you are downgrading you will have to wipe data and the cache or else the phone will just bootloop.
How to unlock the bootloader and install a custom non-stock based ROM:
1) Check if your bootloader can be unlocked by going to you phone keypad and typing *#*#3738423#*#*. This will bring up the service menu, Tap Service Info, Tap Configuration, then look to the rooting status. Under that it will say either Bootloader Unlock Allowed: Yes or Bootloader Unlock Allowed: No. If it says yes you can carry on, if it says no you can only use recovery for locked bootloader.
2) Root your phone and back up you TA partition (tool can be found in the Cross Device Development section).
3) Unlock your bootloader by following the Sony guide (NOTE: This WILL wipe your internal storage, so please make a back up of everything.
4) Follow the install process of the ROM.
Hope I helped.

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RK.Haldar said:
Hey guys how can I go to recovery mod on z2.?
And if I flash any custom rom then how can I back to stock rom.?
And need to unlock bootloader to flash custom rom.? How?
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These seem like fairly basic questions. Maybe questions that have already been answered many many times.
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