eMAX: working baseband and BT with lollipop

bencebacsi

A solution to make a working baseband and bluetooth while using a TCL M2M lollipop ROM on a UMI eMax.

1. Get the modem_1_lwg_n.img file from the /system/etc/firmware directory of an eMAX KitKat ROM or download it from here.
2. Rename the file to modem_1_ltg_n.img (if not downloaded from here).
3. Install a TCL M2M ROM on your eMax, then replace the original modem_1_ltg_n.img file by the eMax KitKat one. - You can do that with TWRP's file manager, for example, just don't forget to mount the system partition. Again, replace the file in /system/etc/firmware.
4. Reboot or factory reset your phone. If you just rebooted, then you have to manually search for networks at the first time. It might need multiple attempts or reboots to be successful.

After you finished, all features of your phone will work except the camera.

Good luck!

Renamed KitKat modem file: modem_1_ltg_n.img
Windows Drivers: MT65x3_USB_VCOM_drivers.zip
lollipop ROM: emax_5.0_ALPS.L0.MP6.V3.20_JRDSH6752.LWT.L_beta.rar
lollipop TWRP for eMAX: UMI_eMAX_TWRP2.8.7.0_lollipop.img
SP FlashTool for flashing: SP_Flash_Tool_Win_v5.1548.rar
SuperSU installer (from TWRP) for rooting: SuperSU-v2.56-20151030013730.zip

WopWop

\n\n[size=40.8106px]Thank you. How will free time try to implant the camera and completely rebuild (if obtained).

dphn

thanks for this solution.

Has anyone tested this with a full camera replacement? Here's a solution on xda for the Sony Xperia Z4 Camera working on other ROMs

http://forum.xda-developers.com/ ... ony-camera-t3169253

bencebacsi

Unfortunately the basic camera drivers are located in the kernel (physically in the boot.img) and that cannot be decompiled. The kernel itself can be extracted from the boot.img but it cannot be decompiled and recompiled to import the camera drivers to the lollipop kernel.

coolman

Is it possible to have Android 5.1 with that method?
All gsm network functions working?
How is battery usage?
Thanks

bencebacsi

coolman replied at 2016-2-4 13:57
Is it possible to have Android 5.1 with that method?
All gsm network functions working?
How is batte ...

Yes, it's possible but there's only one custom version of a 5.1 ROM for TCL M2M. You can install it with TWRP but after that, you have to replace the modem file again.
I was testing this solution with two installed SIM-cards and a 64GB memory card for several days and yes, all network functions worked properly. I didn't experience any difference at the battery life compared to a KitKat system. The performance growth is about 10%, not more.

dphn

where can I find the 5.1 TCL M2M ROM?

for the modem-file I think it's easier you replace the file directly in the zip archive. so you must only install the rom without another modifications.

Now we can have Lollipop on our device but without a camera it's not recommended.

bencebacsi

Yes, that's possible to replace the modem file in the update zip file befor installing, but first you have to flash the flash tool version provided here.
Here's the only known 5.1 version: TCL_M2M_Flyme4.5.4A_Beta2_Android5.1_2015.8.7_.zip
I wasn't experimenting seriously with these custom ROMs, since all of them are massively loaded with Chinese system apps and bloatware. I also failed at internationalizing these firmwares, since the framework-res.apk of no one of them could be recompiled after decompiling them.

dphn

thanks for the link. You're right, Flyme OS are full of bloatware and only a few languages included, but the architecture of lollipop ROMS are better for removing unwanted apps. For each app exists a separate Folder with the apk AND the lib files. Easier for removing completely than KitKat OS with the app-lib files together with the system-libs in system/lib folder.

the problem are the languages For that we need arcatarc to make a good ROM for us.

J.Naw

No way! So I was right... I guess I didn't reboot enough times for it to work.. hmm.

Well its a start. Now if only I could get Cyanogen Running.. There are a couple sources for the C4 and the Lenovo. I got them on the new thread if anyone wants to take a crack at compiling them.