phone keep switching to gsm for sms

CHOPS · #1 (**permalink**) 12-07-2009, 03:50 PM

Spiratically my phone will switch from gprs to gsm for sms service. This usually occurs right after typing a large message, just as murphy's law would have it. I am not sure what is causing this. Usually it takes about a day for this to happen. This is a very annoying problrm and I hope that someone can help me fix it. I am using the Verizon version with stock ROM and some hacks installed like an extended weather database.

**Adrianh85** · #2 (**permalink**) 12-07-2009, 05:40 PM

Quote:

Originally Posted by CHOPS

Spiratically my phone will switch from gprs to gsm for sms service. This usually occurs right after typing a large message, just as murphy's law would have it. I am not sure what is causing this. Usually it takes about a day for this to happen. This is a very annoying problrm and I hope that someone can help me fix it. I am using the Verizon version with stock ROM and some hacks installed like an extended weather database.

is ur phone in global mode or gsm only? also check these setting in the device Goto Start>settings>personal>phone>gsm/umts services>band>get settings
check to see if ur network type is on auto! i leave it there cuz u might be in a hspa area(hspa is the wcdma option) and gsm is gsm! but u might want to hard code ur gsm/umts band to gsm(1900+850) + umts(1900+850)!! that is the band for american gsm!!

**drewcam888** · #3 (**permalink**) 12-07-2009, 05:45 PM

If you dont use the sim card remove it and the phone will never try gsm mode.

**santod** · #4 (**permalink**) 12-07-2009, 06:57 PM

Go to Settings > Advanced Network > SMS Service > select GPRS preferred or just GPRS > Pray!

CHOPS · #5 (**permalink**) 12-09-2009, 04:20 AM

Quote:

Originally Posted by santod

Go to Settings > Advanced Network > SMS Service > select GPRS preferred or just GPRS > Pray!

This is what it is usually set to, but for some reason it is randomly changed to gsm. If I go and manually change it back it won't change. I can change it, exit, and then reenter, but it will be back to gsm.

Q_Q · #6 (**permalink**) 02-05-2010, 11:34 AM

Quote:

Originally Posted by CHOPS

This is what it is usually set to, but for some reason it is randomly changed to gsm. If I go and manually change it back it won't change. I can change it, exit, and then reenter, but it will be back to gsm.

Same issue I just posted on new post here.
I am on Sprint but the settings change for me when I do a soft reset.

I have my phone network setting as CDMA only.
But noticed that the GSM SMS text were providing some send/receive errors.
So I tried GPRS Preferred & GPRS by itself & it seems to have eliminate the errors.

However, the Advanced Network settings for SMS won't stick....keeps defaulting back to GSM.

Any ideas?