[Q] hexing72 / MT6572 / Missing baseband


I have two chinese phones, here is the specs :


Hardware : MT6572
Model : hexing72_wet_lca
Build number : MTK6589
Build date UTC : 20131024-080229
Android v : 4.2.2
Baseband v: MOLY.WR8.W1315.MD.WG.MP.V1.P2, 2013/07/16 14:44
Kernel v : 3.4.5 () (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP Thu Oct 24 15:48:45 CST 2013
Uboot build v : ----- should be root shell
LCD Driver IC : 1-otm8009a_dsi_vdo

I have a full ROM backup (I can make it available if you want). I'm playing around with one of them. I formatted the phone and then downloaded the ROM again.
To do so, I've root the phone and backup it with MtkDroidTool, then make a scatter file for SP Flash Tool and download it to the phone with SPFT 3.14.
Now the baseband is missing and the SIM isn't detected. I know it's a quite common problem on Chinese phone after flashing new ROM, but can't find a solution to restore it. So I hope someone here can help me

I tried to backup the NVRAM from the working phone and restore it on the other one but this doesn't restore Baseband.
I also manually restored the /protect_f and /protect_s folder content. This doesn't help.

So I'm wondering where the baseband is stored on the phone and why it's not restored with the ROM.
Any hints are welcome.
Ha and sending the phone back to customers service isn't a solution


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