Constantly crushing proces com.android.phone

[gincu7]

So about 2 months ago I get BigRom. It was all good but from times to times, no more than few times per week I was getting force close dialogs popup

Unfortunately the process com.android.phone has stopped

After few seconds the process restart and everything was fine, except that I don't always get sms messages... Till last week. Phone process just started crushing few times per day. So I decided to change the rom to BigOS. Happens the same. I back to the stock and on .87 i got phone app crushed once, because I changed after that to ClearStock custom ROM.

But nothinngs change. Exact pattern in most case looks like that:

Unfortunately the process com.android.phone has stopped

It restarts after few moments, phone & internet work few minutes and again

Unfortunately the process com.android.phone has stopped

But this time it doesn't repair itself, few moments later my phone is restarting. And I got that issue few times per day, when I turn on my phone phone some times work, somtimes doesn't.

It seems that it's not depends on ROM, but smth deeper. Guys, I need solution, please. I can't use my phone properly.

I was trying to clear data, to clear cache, I deleted manualy from recovery data folders "com.android.providers.telephony" and "com.android.phone". It doesn't help at all

 

[gincu7]

Ok, but wchich one?

It says

To figure out the right version of Google Play services for your Android device, download Play Services info or go to Settings -> Apps -> Google Play services, and look at the last 3 numbers in the parentheses. You'll see something like -XYZ where:

and I got 270, but there is no version like that to download

Edit: Ok there is one, but it is exactly the same build I have already installed. But ok, I will try and give here the result

Edit2: It changed nothing. Few seconds after I restart phone it crushed again. Problem is somewhere deeper, but how can I solve it?

 

[gincu7]

I get back to the stock .60 but there is nothing change. I dont have any crushes now, but also i do not have any conectivity. What's the problem? I Still have warranty, but if I can fix this by myself I would like to do that. But I need any hint...

Downgrade? Could that help? I've never before problem which couldn't be solved by flashing the custom rom, it's pretty wierd to me