My g1 says I dont have a network connection and im stuck on google sign in. Tmobile said maybe im in airplane mode, maybe bad sim..which its not because it worked in another phone. We have reset and taken battery and sim out.

You may want to post to Tablet Category for a Tablet Expert and a faster response.

You may have possibly turned on Airplane Mode, which disables your 3g/4g connection. To turn this off:

1) On your homescreen, click the menu button and then settings

2)Click on Wireless & networks


3) Uncheck Airplane mode


Let me know if this isn't the issue!

To unlock the Mobile so many method available ....But they leads to Data lose....Unlock code is Best Method..they are safe method...I used the Code to Unlock my mobile,....You can get the unlock code here http://www.theunlockspot.com/htc-g1/rs10wp9/ to Unlock Your Mobile from the Network lock....
You check for your locked Network it's Country also.

Dear,

• 1. Side out the Keyboard / Open Left Hand side Notch to unlock Battery Panel.
  
• 2. Insert TMobile SIM Card and Battery.
  
• 3. Press MENU Button Constantly and Switch the Phone using Red Talk End / Power Button but do not Release the Menu Key.
• 4. This will put on the Phone in Safe Mode.
• 5. Press to Emergency Dial Button, Windows dial *#06# and this will show IMEI Number: note it down and also Recheck IMEI with Box.
  
• 6. Give IMEI to Unlock Code Provider www.unlock-tmobileg1.com and get the Unlock Code.
• 7. Now Return to main Screen and Press MENU Button this Will popup APN Button, Just Press it.
  
• 8. Go to APN Setting. There will be so many APN already Preset. Again Press MENU Button this will show NEW APN Popup Button again Press.
  
• 9. Remember to put Right MCC (Mobile Country Code), and MNC Mobile Network Code, G1 Matches SIM card Data of MCC / MNC with these Setting and then try to use that. Settings.
  All World MCC / MNC codes is available here:
  http://en.wikipedia.org/wiki/Mobile_network_code
• 10. Now Switch off the Phone and Wait for Unlock codes.
• 11. Insert the Non T-Mobile SIM Card which you intend to use it with G1 and switch G1 on. (Your SIM must have
  Data plan / GPRS Activated so G1 will able to contact google.com for Activation)
  
• 12. HTC G1 will ask for Unlock Codes. Type unlock code carefully, typing wrong code thrice may make Phone Hardware Locked.
• 13. Once Unlocked your GPRS / EDGE / 3G Data Service will be active as per APN Setting we did before.
• 14. Type Google User name / Password in Signing Window and this will Activate the Unlock G1 Device on your SIM Card.
• 15. Make other remaining Data Setting like MMS / Home Page / Port to Active other Data Service

Thanks

No you dont need to buy an unlock code if you simply forgot your password code, all you must do is do a hard reset on the phone. and yes you can use it prepaid or with whatever plan you want, all you do is insert your tmobile sim card, i have a flex account with tmobile and i just inserted the sim card, You dont have to contact tmobile.

Hold the Home and Power keys down at same time for about 25 seconds. You will see a yellow triangle screen with exclamation point in the middle.Now to wipe the device clean:

Press Alt+L. Press Alt+W for a factory reset.
Press the Home and Back keys again for about 25 seconds.
The device should then reset again and the hard reset is complete.

I had this same problem, but it went for like a week. I took it back to t-mobile who supplied it to me and the main circuit board inside had broken. They had to replace most of the phone's insides. It would be worth contacting your supplier or insurance supplier if you have any.

Do you have a data plan for the G1? Sometimes if your device is not provisioned for google/data on the network, it will not connect. Check your plan....if anything, call 611 and have them check it out

I want to run gprs into my Blackberry 8100.but the network is locked it is grameen phone network.How can I get this/

Hi, I had that problem. I first verified that my TMobile internet was activated on my account and on my SIM card by putting the card in another phone and connecting to the 'net on it. Then I found the APN setting on the G1 and I changed the APN at the heading "T-Mobile US" from the new 3G APN "epc.tmobile.com" to the older APN "internet2.voicestream.com". The APNs can be accessed on your still-locked phone by pushing the "Menu" button at the sign-in screen. Scroll down to "T-Mobile US", select it and change "epc.tmobile.com" to "internet2.voicestream.com", exit by pushing the left-arrow button a few times, then re-enter your GMail info. If the "Edge" icon has appeared in the menu bar area, then you're golden!

If the Iphone works, all you have to do is reinstall Itunes.