How to downgrade to 4.3?

[SZLevente]

Hi,

I updated to 4.4.2, but i don't like holo ui, new system ui, and i lost write acces to sdcard. (last is Google's error, i know)

How can i downgrade to 4.3? It is possible to downgrade via PC Companion?

[_alexdon_ · Accepted solution]

No,you need to use a flashtool and download a ftf file.Head over XDA.

[SZLevente]

This? http://forum.xda-developers.com/showthread.php?t=2762296

And if i do something wrong, and i get stuck, can i use pc companion to fix phone?

[_alexdon_]

Yes,that is what you need.I hope you do not get into trouble.PC companion might help you if that happens.

[SZLevente]

Okey thx, maybe last question: I can't unlock bootloader because it's dependent (T-Mobile) 

So without unlock, this downgrade can succesfully?

(Sry for bad English)

[_alexdon_]

Yes,it will succeed.Only for custom ROMs you need bootloader unlocked.

[SZLevente]

My firend say i need to find t-mobile tft, because with the simple tft (D2303_18.0.C.1.13_CE.ftf) the phoning will not work.

Is this true?

[_alexdon_]

If the device is network locked,you need the carriers firmware.

[SZLevente]

So my friend true..

Where can i find T-mobile .tft 4.3 for m2? (not dual sim)

[_alexdon_]

Ask on XDA,I do not know where could you find it. I am not sure that you will have problems if you exclude baseband when flashing.