Have you tried this to downgrade
Download the MR2 Uprade Eris ROM from verizon partner:
[Only registered and activated users can see links. ]
1. Unzip the file
2. Plug your phone to your PC/MAC.
3. Find your folder (MAC or PC folder)
4. Run .exe file in the folder "RUU_Desire_C_Verizon_WWE_1.17.605.1_release_s igne d_with_driver.exe"
5. follow on screen instructions.
From: [Only registered and activated users can see links. ]
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Have you tried this to root 2.1
[Only registered and activated users can see links. ]
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