Updating unlocked g1
The whole BIOS updating procedure should be treated with extreme caution.
If you do not encounter any system instability or bugs with the current BIOS version, we suggest that you keep it.
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Visit Stack Exchange I have a T-Mobile G1 phone (Dev Phone) with android 1.0.
Some times there is the need to reset bios password, in order to be able to enter the BIOS and modifying its settings (e.g. This BIOS Reset procedure on a desktop computer is a relatively easy process, because in most cases all you need to do is to remove the power cord and the CMOS/BIOS battery In the other hand if you own a Laptop, the procedure to reset the BIOS/CMOS setup password, is more complicated especially if the CMOS battery is not easy accessible.
This tutorial lists all the available ways to remove/clear the BIOS/CMOS password on a HP Probook, Elite or Pavilion Laptop.
It requires reverting back to RC29 ROM (downgrading back to 1.0), and having ADB and HTC drivers installed on your PC.
Still waiting for Oreo 8.x for my G4 which is running the April 2018 security updates.
It would appear that Motorola / Lenovo have given up on their promises for G4 users.
But the update failed and now the problem is that I cannot boot the phone completely. Although, I don't have a T-Mobile SIM card now, I could pass that stage with an AT&T SIM card. When I press menu button it just shows me the settings for APNs.
Now it wants me to login to my gmail account to boot up. I believe in the newer versions of android, one can skip logging in to Google.