Downgrade auf JM1

Hallo zusammen,

Seit heute ist ja das offizielle Foryo von Samsung draussen.
Ich hab die JP6 drauf(über ODIN geflasht).
Wie kann ich wieder downgraden? Denn ich kann nicht updaten.
Muss ich root zuerst entfernen?

mfg pesc

mit odin die jm1 aufspielen ganz einfach.

1. Install ECLAIR
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For Froyo in general, I read its better to flash with ODIN 1.3 first the JM8 (Eclair = 2.1) with "re-partition" checked ON and 512.pit
Du musst bei ausgeschaltetem Gerät Volume-down + Homescreen gedrückt halten und dann die Power-Taste drücken. Damit kommst Du in den Download-(Flash-)Screen.

1. BEFORE anything, disable any LAGFIX, remove SD-Card, remove SIM-Card
2. Odin 1.0: select Pit 512 and put the MODEM file in "phone" and the CODE File in the "PDA" section of Odin.
3. Leave all other section blank
4. Tick/Check "check repartitions" and Flash it
5. If the phone starts vibrating and giving force closes, just reboot in Recovery mode (VOL UP + HOME + POWER) and Wipe Cache/Data



2. Install FROYO (or use Kies)
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After that install the JP6 (Froyo = 2.2) with 803.pit, but this time DONT CHECK the re-partition, make sure its not "Clicked".

1. BEFORE anything, disable any LAGFIX, remove SD-Card, remove SIM-Card
2. Odin 1.3: select Pit 803 and put the only file you get (JP6_JP4_U_JPM.tar) in the PDA section of Odin.
3. Leave all other section blank
4. Don't tick "check repartitions" and Flash it
5. If the phone starts vibrating and giving force closes, just reboot in Recovery mode (VOL UP + HOME + POWER) and Wipe Cache/Data


3. INSTALL 2E RECOVERY
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1. (USB) Disconnect your phone from your computer
2. Start ODIN
3. Click the PDA button, and select CF-Root-JP6-v1.2-Busybox-1.17.1.tar
4. Put your phone in download mode
5. (USB) Connect the phone to your computer
6. Make sure repartition is NOT checked
7. Click the START button, wait for the phone to reboot


4. INSTALL CLOCKWORKS
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1. Rename your Clockwork Mod to update.zip
2. Put xx in the root of your internal SD-Card

5. RUN CLOCKWORKS
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1. Use Volume-Up+Homescreen and Powerbutton to launch 2e, there chose update.zip
2. Clockworks Mod is loaded, chose to Wipe Data/Factory and Cache.
3. Now install any update *.zip like Darky's Raw Steel Edition

Ich hab es gemacht.
Muss ich bei CSC nichts auswählen?
Ich bekamm den Fehler: odin can't open the serial com port
Was hab ich falsch gemacht?

mfg pesc