M3G ROMs, method from XDA

AlexisTM

Dear,

Here is a method to Flash M3G ROMs on the Emax mini.

I found this method from XDA forums. I am sharing it but I DO NOT HAVE TESTED IT MYSELF. ( http://forum.xda-developers.com/ ... d-4g-t3204602/page5 )

• 1. Get root ( TWRP + SuperSu http://community.umidigi.com/for ... peid%26typeid%3D104 )
• 2. Do QCN backup in QPST (in adb-shell "setprop usb.sys.config diag" before trying to save)
• 3. Flash LEWA 4.0 using QFIL ( http://www.needrom.com/download/tcl-m3g-lewa-4-0/ )
• 4. Root LEWA and flash TWRP
• 5. Restore modem backup (QCN)
• 6. Flash any ROM for TCL M3G.  ( http://www.needrom.com/category/tcl/m3g/ )
  

Thanks pbPACMAN from 4pda & Shandry from xda

varotone

valeriubogdanel replied at 2016-1-19 23:27
Guess what?

I have a bricked phone.

Try this:

• Hold power button until phone resets and then hold it some more so it turns off
• Connect phone to USB and immediately hold all 3 buttons.
• Release buttons after a couple of seconds, and hold volume up
• Check if download interface is visible in device manager, and if it is, try running the unbrick kit, or flashing a LEWA img via QFIL.
  

valeriubogdanel

Can anyone extract MIUI rom for TCL M3G from this china forum MIUI 7/ 11.01.2016

varotone

\n\n

AlexisTM replied at 2016-1-10 22:24
Damn, if TCL discontinued M3G, since TCL gives the ROMs to UMI, we have NO CHANCE to get any ROM...  ...

There are only 2 roms "oficially" published by TCL, one is the 5.0.2 AOSP that we already have and the other one is a LEWA (which is closed-source and owned by Lewa Corporation). Keep in mind that while TCL produces UMI's phones, they are separate companies with a market agreement, and not exactly willing to give each other free stuff. TCL will produce what UMI pays for, no more and no less.
I understand that roms for M3g and eMAX mini are developed independently, according to whatever agreements both companies make. That means that even if TCL stops updating their roms (and they appear to already have stopped), we could still have updates as long as UMI continues to pay for them.
These are all theories, however, and I'd like to hear an official statement regarding these matters.
Edit:
Also, @AlexisTM: the notification LED works out of the box in stock LEWA rom, and after aplying some fixes in other CM-based roms.

yes

bencebacsi replied at 2016-1-9 12:07
So, as you can see, the hardware of the two models is not exactly the same, since they have differen ...

Anyway, the firmware of both phones are developed by TCL

I really hope that team Umi will take the firmware development over - because TCL has discontinued the M3G meaning that they don't have much interest in the future of this phone.

varotone

I have tested it myself and works, currently have M3G's Mokee installed.
Some additional explanation:
This method comes from the fact that the hardware in M3G and eMAX Mini are exactly the same. When you flash by download mode the LEWA Rom, you are actually "converting" your phone partitioning to that of the M3G, so you *technically* stop having an eMAX Mini.
Another interesting thing is: this is reversible, and also should work for converting M3G to eMAX Mini. I have written a tutorial (in spanish) here: http://www.movilesdualsim.com/te ... oms-tcl-m3g.124812/.

Niaph

It will be a good alternative if UMI do not update their roms....

AlexisTM

This is awesome ! Thanks for the additionnal information !

Is the notification LED working ?

Note : TCL is the manufacturer & the software dev of UMI...

bencebacsi

So, as you can see, the hardware of the two models is not exactly the same, since they have different basebands. So, be very careful. To make, then restore a working backup of your original modem is essential. Anyway, the firmware of both phones are developed by TCL.

WoRm

5. Restore modem backup (QCN) --> is this for the different Basband?

bencebacsi

WoRm replied at 2016-1-9 23:41
5. Restore modem backup (QCN) --> is this for the different Basband?

Yes, it is. Without that, your phone won't be able to connect to mobile networks.

AlexisTM

Damn, if TCL discontinued M3G, since TCL gives the ROMs to UMI, we have NO CHANCE to get any ROM... ?

Note : They just have to recompile M3G ROMs, almost the same configuration to make them working for the UMI eMax...