ok, having not modified my phone in any way yet. The patching of the SPL seems like the best way to get started and easiest way to play with custom roms. Now what I'm wondering is if I have this right.
My phone has IPL 2.21.0002 & SPL 2.21.0000, and I'd like to go straight to IPL 2.27.0002 & USPL 2.28.0000.
Let me write down what I believe the procedure is, please correct me if I'm mistaken, thank you.
1. Install EnableRapi.Cab & Cert_SPC.Cab on device, reboot. (is this done only the one time, or before each IPL/SPL update?)
2. Remove MicroSD/SIM card from device
3. Connect device through ActiveSync. (Allow USB connections on or off?)
4. Run the elf-uspl.exe from USPL 1.17.0000 and follow instructions.
5. When successful, run the elf-uspl.exe from IPL 2.27.0002 and follow instructions.
6. When successful, run the elf-uspl.exe from USPL 2.28.0000 and follow instructions.
7. Great Success?
Just like badaas I feel that I should ask before I risk a wrong step and causing unnecessary problems.
You and I have the same phone, I believe. I went to IPL/SPL 2.27/2.28 last night. Basically you want to flash the USPL first before you flash a anything else. Your steps are correct -- make sure you have ActiveSynch running with the USB on. After you have the USPL, you can flash directly from the RomUpdateUtility.exe without removing any card or doing the extra steps previously. You can even flash from the bootloader if you have USPL.