Issues:
1. [SOLVED] I can't flash anything unless it is the full ROM. I tried jabbawalkee's base zip but no luck.
Solution:
Post 12. Thanks to ogdobber.
2. If I make a nand of a themed ROM and try to restore it, I get a bootloop. Unthemed ROM works fine.
Temporary Solution: Don't use ROM Manager to restore your themed Nandroids. Go to recovery and restore the Nand and don't reboot.
Flash the pertinent ROM again without wiping anything, then reboot. Flash the theme again.
3. How to get out of a bootloop? I've been doing the battery pull and volume up + power button does not work during a bootloop.
Solution: adb reboot recovery
4. [SOLVED] Nexus S loses signal after reboot.
After unlocking the bootloader, I used paul's Superboot to get root and used ROM manager to flash the latest CWM. All is well except every-time I reboot, I lose the signal (it shows emergency calls only) and I have to search for available networks in Mobile network settings.
Solution:
In the dialpad enter *#*#4636#*#*
Select phone information
Scroll down to preferred networks
Select "WCDMA only"
Click on Update
You need to re-enter the SMSC Carrier number. For WIND Mobile Canada, SMSC is 16135009000
Android requires you to enter this info in Hex.
Hex = 07916131059000F0
For Mobilicity Canada Hex = 07916174080001F6
In the dialpad enter *#*#4636#*#*
Select phone information
Scroll down to SMSC field, enter 07916131059000F0 and done. Then reboot.