If your T-Mobile G1 smartphone is running very slowly, hanging, you want to bypass the screen lock, or you have a full memory and want to erase everything, or you want to sell or give it away and want to ensure that nobody can access your files and passwords, you can do a factory reset to restore it to its original state like the first day.
In the following steps we explain how to format the T-Mobile G1 to erase all your information and make it totally clean as it came out of the store.
Before doing a factory reset, we recommend deleting all the accounts on the device, specifically it is useful to unlink the Google account if you are going to sell, donate, or give away your G1. This will avoid problems for the new user, as some newer devices include a functionality called FRP (Factory Reset Protection) that requires the same Google account or PIN code with which the T-Mobile G1 was initially configured when factory resetting a device.
Keep in mind that a reset or return to the factory state on a mobile/cell phone deletes all its content, so make a backup of your data before doing it if you don't want to lose everything.
In case you do not want to erase the data from the device, you can try to restart the T-Mobile G1..
There are two ways to do a reset on a T-Mobile G1 one through the mobile options and another more complete from the recovery mode.
Table of Contents:
If you want to make a reset using the device options to return to the factory state a T-Mobile G1 you have to follow these simple steps:
Estimated time: 5 minutes.
1- First step:
To access the settings menu on your T-Mobile G1, look for the icon that resembles a cogwheel. Click or tap on it to open the settings menu.
2- Second step:
Scroll down the T-Mobile G1 settings to the bottom where you will see the section called “System”, click or tap to continue.
3- Third step:
If you see a section called “Advanced” click to display the advanced options of the T-Mobile G1.
4- Fourth step:
Click on “Reset options” from this section it will allow us to restore network options, applications or reset the T-Mobile G1 completely.
5- Fifth step:
Click on the last option called “Erase all data (factory reset)” or simply “Factory data reset”.
6- Sixth step:
A first confirmation message will appear reminding you that all your data will be deleted from this device, the data you have uploaded to Google, Facebook, Twitter, Instagram or backup copies that you have in the cloud, such as Google Drive, Dropbox or One Drive, will not be deleted. Press “Reset phone”.
7- Seventh step:
A second confirmation message will appear indicating that all information stored on the T-Mobile G1 and all downloaded applications will be erased and reminding that this action cannot be undone. If you agree, click on “Erase Everything”.
8- Eighth step:
If necessary, draw the screen unlock pattern or enter the screen unlock password or PIN to continue.
9- Ninth step:
Your device G1 from T-Mobile it will restart and take several minutes to start while restoring the device to its factory state and optimizing the applications pre-installed in the operative system Android 1.6 (Donut).
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About the device:
T-Mobile G1 is a mobile/cell phone with dimensions of 117 x 55.7 x 17.1 mm (4.61 x 2.19 x 0.67 in), a weight of 158 grams, , a screen resolution of 320 x 480 pixels (~180 ppi pixel density).
It has a processor 528 MHz ARM 11, a graphics card Adreno 130, a RAM memory 192 MB RAM and an internal memory of 256 MB.
The T-Mobile G1 comes from the factory with the Android 1.6 (Donut) operating system.