How to Unlock a HTC G1

The G1 manufactured by HTC, is the #10 selling Smartphone on the market for January 2010 with 4% market share according to BusinessWeek. The G1 owes its success to the fact that it was the first phone that came equipped with the Android operating system by Google. The phone is manufactured to work on the T-Mobile network and thus can also work on any other GSM network, such as AT&T. Check out the video below to see how to unlock your G1 to use on other GSM compatible networks. Also, below the video I’ve included the specifications for the G1

Processor	Qualcomm® MSM7201A™, 528 MHz
Operating System	Android™
Memory	ROM:256MB RAM:192MB
Dimensions (L X W X T)	117.7 mm x 55.7 mm x 17.1 mm (4.60 in x 2.16 in x 0.62 in)
Weight	158 grams (5.60 ounces) with battery
Display	3.2-inch TFT-LCD flat touch-sensitive screen with 320 x 480 (HVGA) resolution
Network	HSPA/WCDMA: Europe: 2100 MHz US:1700/2100 MHz Up to 7.2 Mbps down-link (HSDPA) and 2 Mbps up-link (HSUPA) speeds Quad-band GSM/GPRS/EDGE: 850/900/1800/1900 MHz (Band frequency, HSUPA availability, and data speed are operator dependent.)
Device Control	Trackball with Enter button
Keyboard	Slide-out 5-row QWERTY keyboard
Connectivity	Bluetooth® 2.0 with Enhanced Data Rate Wi-Fi®: IEEE 802.11b/g HTC ExtUSB™ (11-pin mini-USB 2.0 and audio jack in one)
Camera	3.2 megapixel color camera with auto focus
Audio	Built-in microphone and speaker Ring tone formats: AAC, AAC+, AMR-NB, MIDI, MP3, WMA, WMV 40 polyphonic and standard MIDI format 0 and 1 (SMF)/SP MIDI
Battery	Rechargeable Lithium-ion battery Capacity: 1150 mAh Talk time: Up to 350 minutes for WCDMA Up to 406 minutes for GSM Standby time: Up to 402 hours for WCDMA Up to 319 hours for GSM
Expansion Slot	microSD™ memory card (SD 2.0 compatible)
Special Features	Digital Compass, Motion Sensor