mercredi 11 février 2015

Weird network and data issue after replacing my screen and digitizer. Help! topic






I'll try to keep this post as simple and well typed out as possible...

I cracked my screen and essentially damaged the digitizer as touches couldn't be registered at all, so I ordered a newbie off Aliexpress and using the guide on iFixit, I repaired it myself. It booted perfectly and everything works fine EXCEPT for a weird issue I'm having with my cellular data and the network itself not registering properly or something.

I've a SIM card and plan with Vodafone Australia and basically the phone:

- sometimes registers 4G/LTE, but never 3G and 2G didn't seem to want to work
- can sometimes send/receive texts (at random)
- can't make or receive calls
- cellular data absolutely doesn't work at all, nothing will load. I think there was only 1 occasion where half a web page loaded, but that could have been cached
- when the network 'disappears' either I just have a blank network bar in the status bar or sometimes I also get a triangle in the status bar and in the notification pull down area it reads "NO SERVICE - selected network (Vodafone AU) unavailable"

Prior to doing the repair I was using a Telstra 4G SIM and everything worked flawlessly right out of the box. Never an issue. I'm pretty sure both providers even run on the same bands.

I have tried the following to solve the problem, to no avail:

- different ROM and kernel (stock CM11S, Temasek CM12 w/ AK kernel)
- fastboot erase modemst1 and modemst2
- different modems (44S, 05Q)
- changing settings in *#*#4636#*#* menu (LTE/GSM auto, and the rest)

All I have left to try is to go see my provider and request a new SIM.

I'm thinking maybe something happened when I disassembled the device, like I may have damaged the part of the main board where the SIM registers. Could this be the cause? Surely not,as I do get that temporary LTE registration...

Also note that I'm 99.99% sure it's an international device, not a Chinese one, as it came with CM11S and the Aliexpress seller told me so.

Any advice? HELP!!!






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