[phrider]

After 5 months of stable operation with my Blackberry 9810 with 7.1.0.284, it started rebooting continuously. It took several rounds, but I noticed the problem happened just as the rebooted Blackberry synced to WiFi. If I moved fast, I was able to turn off the radio in the reboot process before WiFi started.

I discovered that it wasn't the WiFi connection, but the start of WiFi Calling (an additional layer of syncing with TMO servers after the WiFi data connection is going). So if I'm connected via WiFi to a router with ports blocked in a way that WiFi calling can't work, but a WiFi data connection is working -- no problem. If the WiFi calling links up, BOOM, the Blackberry goes into a reset loop.

I tried updating the OS to 7.1.0.569, hoping the problem would go away. I wiped both data, applications, and the old OS off before loading the new OS. I did restore the old data.

Same problem -- the new OS boots and is fine until I attempt a WiFi connection that links to WiFi Calling.

This just started this week after I did a routine Atl-Shift-BackSpace reboot.

Ideas?

[rnh2112]

My 9810 did the same thing a few days ago, and t-mobile said it was a hardware issue so they sent me another 9810 and this one connects to wifi and doesn't reboot, but now this new 9810 only connects to the cellular network with EDGE speed, i called t-mobile about this and they said it was a "network issue" and technicians are on site working on it because they've received a lot of complaints about the EDGE only speed in my area, but at least i can wifi call again, lol

[RoseBud68]

There an issue on T-mobile. Here a thread on it,

Connecting to wifi on bold 9900 puts my phone in reboot cycle

[phrider]

T-Mobile's 9810 support forum seems to have the most complete discussion:
Support: BB Torch 9810 rebooting on WiFi calling

[SK122387]

HERE'S HOW TO FIX IT:


Go to Network and Connections

Click on Mobile Network

under Preferred Network for Calls, set it to MOBILE NETWORK ONLY.

This worked for me on both my 9900 and 9810 on T-Mobile. I can now still connect to WiFi anywhere with absolutely NO REBOOTS!

hope this helps

[phrider]

For some of us, the problem has stopped, to there is no need to shut off WiFi Calling.

If it hasn't stopped for you, look at the thread I posted in Post #4 above.

[rnh2112]

I received a new 9810 from t-mobile because after troubleshooting my device with them, they determined it was a hardware issue and sent me a new device overnight, and it connects and wifi calls like it should..