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Cant send sms

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Senior Member
May 24, 2010
Brandenburg ky
Sorry if this has been answered before but I can't find the answer.
I got my gsm razr today and I love it but I can't send a text message, I can receive texts and surf the Web. My phone us showing 4 bars of hspa. I can even tether, but no sending sms. My phone says error code 500.
Only thing I found on google said restart it and SMS will be.fixed but that didn't work.
the phone is rooted on 2.3.5 if that matters.
has anyone had this problem and how can I fix it?

Sent from my XT910 using XDA


Mar 9, 2011
I have the same problem. The only way I can get mine to work is to put a SIM from another account in my phone. Enter *#*#4636#*#* and go to Phone Information. Refresh the SMSC. It will populate with the correct information. At this point, I can send texts from the phone. Put in the original SIM (do not reboot phone) and then you should be able to send SMS from your number.

The only problem is that the SMSC number does not stay through reboots. I have to do this process every time I reboot.

Does anyone know how to get this number to stick?


Senior Member
Dec 10, 2011
I don't have the same problem however I have noticed that GOSMS Pro from the market does allow a Customized SMSC setting in the Send Settings tab. Perhaps you can try that out and see if it fixes the issue?