[Sony Xperia P, U, Sola, Go] F-16akias:
[Q] Sony Xperia Sola stock 2.3.7 GB (6.0.B.3.184) to JB 4.1.2 (6.2.A.1.100 "stock")

Hello,

I am an owner of a Sony Xperia Sola with stock 2.3.7 GB (6.0.B.3.184) with BootLoader Locked and NOT rooted.I am thinking of installing JB 4.1.2 (6.2.A.1.100 "stock"). I 'm expert with computers,programming and familiar with mobiles. After reading many articles in xda, I understand what's going on but I am afraid of doing changes before being 110% sure :p. Moreover my mobile is working perfectly now. I am thinking of installing 6.2.A.1.100 Firmware Port by DeathZeroFx as what I am looking for is a "stock" unmodified version of JB even with bloats!

Now from what I have understood I have to upgrade to ICS, then unlock BL,root,install Munjeni's 0.400 JB rom and then 1.100 port!

So in details:

1)Upgrade to original ICS .54 using PCCompanion or with the .54 ftf via flashtool? Then boot and let it settle.

2)Root my ICS now Sola with "Root MANY ANDROID" http://xdaforums.com/showthread.php?t=1886460

3a)Create a Backup TA Partition & DRM Keys using Backup TA v9.9 for Windows

3b)Check if TA backup is passing checks!

4)Unlock Bootloader according official sony craps bla bla..

5)Install Munjenis JB 0.400 by:

- flash any cwm kernel (optional NOT required for me)

- full wipe (cache, data, dalvik-cache) through CWM (NOT required for me as long as no kernel is installed by me)

- flash jb rom via cwm

- full wipe (cache, data, dalvik-cache) through CWM

- reboot system

6)Install DeathZeroFX JB 1.100 by:

- Copy Pre-Final 1.03 and Final 1.04 on my phone

- Go to CWM, and Install Pre-Final 1.03, then install Final 1.04

- Wipe data (If you are on ICS, then you should do it) ~btw I will do it even if I think at least I am on JB!~

- Wipe Cache, wipe dalvik cache

- Reboot

After all these steps I suppose my mobile will be running JB 1.100 as it supposed to do, but I will still be with unlocked bootloader and DRM Keys will be lost.

According to Backup TA v9.9 all I have to do is restore my TA Partition & DRM Keys.BACKUP and this according to the FAQ section it will relock the bootloader!

Q1 (noob maybe): Backup was made from ICS .54 won't it have differences now on JB 1.100? My question came also from the above FAQ.

Q2: Firstly I think of using default Roms kernels (they include one). If bugs occure I was thinking of trying Phantom Kernel [v 1.1.0] BUT it says "Based on latest source code from Sony (6.2.A.0.400)". Is there any problem?Alternative is the latest experimental. Still what happens with TA & DRM backup?

I need DRM Keys in order for Bravia Engine and TrackID,Walkman song info.. to work!I know that there is a flasable zip if DRM are lost..

Q3(noob sorry): I restored once GB to stock conditions from the menu option.Will that work also on JB 1.100?I mean supposing I need to restore it to the factory settings, can I do it as before or do I have to do the whole process again :silly:

Q4: As I know glove mode and floating toach are not working on JB Roms..could that be a problem with DRMs?I can live without them..:)

Q5: I use to play Real Racing 3 and now I am unable to prevent programs from running in the background even if I haven't opened them and keep cpu busy!So I think of using Greenify and AppQuarantine to free RAM for the game.Does anyone played that game on Sola with JB?

Q6: Does DeathZeroFX JB default kernel support overclocking?Is that achievable from Androids settings or from app like No Cpu Frills?Moreover does oc to 1150Mhz has any impact on performance?I mean playing RR3 :P .

Q7(and last): I know illumination bar is not working on that Rom, but I saw that there is a fix on Munjenis JB post by "akkufix" or so (no offense)

and I was curious if this can work on that Rom too.Should I install it after Munjenis Jb before DeathZeroFX or in the end?

This is my first post and I 'm very sorry for my hugeeee composition!Any advise will be useful for me and if I missunderstand something plz let me know!

All I want is a rooted JB rom in my Sola that is unchanged just as it would be if sony released an official one, and RR3 is playable cause in GB on rallies with 22 opponents it lags sometimes and may fc!PS. I have installed viber avast anti-virus and these eat some RAM :)

Thanks for your time reading it :D