[Q] Mobile Network State: Disconnect. Is It Hardware Problem?

Operator: U Mobile (Malaysia)
Rom: 2.3.6(4.5.1.41.MB860.ATT.en.US) flash with CWM using fruit cake rom.
Baseband: N_01.77.36P
Kernal Version: 2.6.32.9 a21`146@zch45Inxdroid55 #2
Status: Can make call and receive sms. Apn setting is good. Wifi and bluetooth also work fine. Only mobile data state is the problem.

Problem:

1.I got this Atrix last 3 week. When i put a sim card it cannot detect my data so i install TWEAKKER from Play Store and get the setting for my APN. Everything work fine.

2. After a week i unlock the bootloader, install Nottachtrix, and again using TWEAKKER to set my APN, have fun with lapdock (overclock it using faux kernal to 1.45ghz). Everything still work fine.

3. Last 5 days i start play around with Titanium backup and supercharged v6. I backup and remove system application that i think i dont need it. I end up with mess around with the system but since i already made a backup i just restore it to default and then i start notice i lost my data signal.

4. I reflash fresh nottachtrix rom using CWM but the data still disconnected. I try flashing other rom like ICS rom also same problem. And then i flash official rom using CWM (fruit cake method) and RSD method. Still no luck. But today i play around with HiAPN and i can connect to data again but it seem not stable. But i can receive Phone call and sms without problem.

5. I already check my sim card by put it to other phone and i got no problem with it.

Any suggestion what i need to do to make data work again normally?

Update 18 May 2014:
1. I reflash 2.3.4 rom using RSD. Mobile Network State still disconnect. I will buy a new sim with different operator to test either my phone got problem or is it the sim/operator problem. Old but powerfull phone. I hope i got change to use it as daily phone again.

Update 21 May 2014:
Already test with other operator also no luck. Flashing all the radio that i found also no luck. Guessing the hardware got problem but quit confuse because call and sms still can receive.

andresrivas said:

Not a smart advice, use it as last resource:

Find the radio version your phone have and flash it, or simply flash another radio. Be careful, tough as an incorrect version (not all radios work on every atrix) you may end with a nice hi-tech papeweight

Click to expand...

Click to collapse

I already flash:
a) Radio N_01.77.30P
b) Radio N_01.77.36P
c) Radio N_01.77.37P_usa_att_12dec2011
d) Radio N_01.100.00R

I found all the radio in fruit cakes link except for D. Still no luck. Is it a problem with my phone? I can receive call and sms normally. Only data not work and i believe my APN setting is correct.

Already call my operator services and they also can't help. Today will try another sim card with different operator that i will borrow from my friend to check either i need to upgrade my sim or not.

Still hope to get any expert help from XDA forum

Any expert? I got iPhone and windows phone but nothing can beat this atrix+lapdock.