I made the mistake of resetting my MyTouch 3G. Now that it's reset, it starts to the Google Sign In screen. Here is what I've tried so far.
This doesn't work because there is no service or wifi. There appears to be no way to access the normal settings menu to turn on wifi. It's a classic catch-22. You can't sign in without wifi and you can't turn on wifi without signing in. You can't go to the home screen (locked on Welcome to T-Mobile myTouch 3G / Google Sign In / Emergency Dial / Change Language), you can't pull down the notification bar, and the menu only brings up "APN settings".
SKIPPING SIGN IN
This doesn't work because I can't see any way to skip the sign in / sign up. There is a skip button to skip the three page "Learn how to use your T-Mobile myTouch 3G" help section which precedes the actual Google Sign In menu, but it ONLY skips the three help pages. It does not skip the actual Google Sign In screen. On this screen there are only three options: 1) Create 2) Sign In 3) Back
TAP THE FOUR CORNERS
I tried tapping the four corners on the Welcome screen (top-left, top-right, bottom-right, bottom-left) about 50 times, but it does nothing. I looked it up and several websites said that the four corner method does not exist on the T-Mobile MyTouch 3G. There are even videos on YouTube of people demonstrating with my exact model of phone that the four-corner tap does not work on this phone. Here is one:
typical android activation bypass doesn't work on the mytouch 3g - YouTube
REMOVING THE SIM CARD
Once the SIM card is removed, you are greeted with a delightful "No SIM Card" screen. Unless you know a method, I see no way to bypass this screen / or to access the normal settings menu.
BORROWING A T-MOBILE SIM CARD WITH SERVICE
Several websites say you can temporarily insert an active SIM card, turn on wifi, then swap the original non-active SIM back, and then sign in to Google via wifi. I know dozens of people with cell phones, but no one uses T-Mobile. I live in a town of 300,000 people, yet there are zero T-Mobile dealers. I tried Best Buy. No one there had a T-Mobile phone either.
UPDATING THE FIRMWARE
I removed the microSD card, connected it to my PC with a USB adapter, copied a firmware update to the SD card, put the card back in the phone, and ran the update. It took a while, did many things, and was successful, but it appears to have changed nothing after rebooting the phone.
INSTALLING A CUSTOM RECOVERY IMAGE
I tried doing this using these instructions:
TMobile myTouch 3G: Rooting - CyanogenMod Wiki
This fails on Step #5. After trying "fastboot flash recovery recovery.img", I am greeted with the "sending 'recovery' (2644 KB)... FAILED (remote: not allow)". Fastboot does see the phone ("fastboot devices" shows phone in list) but is not allowed to run the update. I read several web pages explaining how to fix this error, but all the fixes involved _already_ having full access to the phone (e.g. you would have to download apps, access settings menus, etc).
HBOOT / FASTBOOT INFO
I don't know if this is useful or not, but here it is:
SAPPHIRE PVT 32B SHIP S-ON G
May 29 2009, 19:06:41
I have exhausted my "Google Fu" and I'm out of ideas. I'm not impressed with android right now, but I'm keeping an open mind. Any help on this would be greatly appreciated. Thank you!