How To: Load a Custom ROM on the Samsung Nexus S
I. Before You Begin
1. You must have done our How To Root Nexus S procedure.
II. Flash a Custom ROM
1. Head over to our Nexus S ROMs section, choose a ROM you want and download it and save it to your computer.
2. Plug your phone in and mount the internal storage so we can transfer files to it.
3. Copy the ROM .zip file over to the root of the internal storage (NOT in any folders, just on the internal storage itself).
4. Turn off the phone.
5. Turn the phone on by holding down Volume Up and Power until Fastboot mode comes up.
6. Scroll down and select Recovery and wait for the phone to reboot into recovery mode.
7. Once in recovery mode, scroll to Backup, then select Backup and wait for the phone to backup its current ROM.
8. Once it is done, select Wipe Data
9. Then select Flash zip from SD Card
10. Select choose zip from sd card.
11. Select the ROM’s zip file you loaded onto the internal storage earlier and wait for it to flash. Done!
12. Repeat to load a different ROM.
