Won't read sim

It is probably not sitting right in the SIM card slot. It needs to be in the slot kind of tight so the terminals are having a good contact with the inside of the phone. Sometimes, you can thicking the card up by putting a small piece of paper or even scotch tape on the back of the sim card. this way when you push the card in, it is more snug and in place. That is most likely the problem.

you might need to get a new one.

go and stop by at a tmobile retail store
and have them transferr all your infos
out of your old sim card onto a new one.

good luck. and hope that help
and dont forget to rate it!

thanks.

Here is your solution: 
Now follow these steps to a "T" don't do any shortcuts etc, this is "across the board" for all sidekicks it worked on my Sidekick Slide and on my Sidekick 2008.

1. Remove battery and the SIM card from the devise.
2. Flip the sidekick open; press and hold the letter "r" on the keypad
3. While holding the letter "r", place the battery back in the device. DO NOT INSERT SIM CARD YET.
4. The Sidekick will restart itself twice. Please make sure not to let the letter "r" go until it has fully rebooted.
5. Once it has fully rebooted, remove the battery, reinstall the SIM card and battery.
6. Power up device.
7. Once the device has fully rebooted, all prior information should be erased from the device and it should be restored back to the default factory setting.

try seeing if the sim card is put in right.
mine did the same when i got it

try putting it in a different way.

or maybe the sim card is damaged

Sorry, the sidekick II doesn't have a battery that can be pulled out. You need to pull back the bumper on one side to access the sim card slot.

1. Follow these instructions to remove your operator-supplied SIM card from your device:
2. Turn off your device by pressing the power on/off key.

• Expose the SIM card slot by peeling back the bumper from the top-left edge of the device:
• Press down on the silver "catch" and the SIM card will spring out of its slot. Remove the SIM card carefully. (Always handle your SIM card carefully since the card and gold contacts can be easily damaged by scratches or bends. Be sure to keep SIM cards out of reach of small children.)

1. Now insert the SIM card containing the contacts you want to import:
2. Insert the SIM card into its slot with the gold contacts facing up and the cut corner facing out.

• When you release the SIM card make sure it is locked into position behind the catch so it doesn't spring out.
• Replace the bumper and turn on your device.

GrinningFool

www.repairmysidekick.org

Yeah, I can help. On the sidekick 08 when placing the card make sure you place the card with the cut edge facing the battery. This phone work with the sim card facing the opposite way. Hope this help:)

Try to do a hard reset.


Flip open screen half way put pin or pen in the tiny hole and hold it in till it vibrate and turns off and on..


I hope it works

hello, hope these instructions help: 1. To expose the SIM card slot, peel back the bumper from the top-left edge of the device. (fig 1) 2. Insert the SIM into the slot with the gold contacts facing forward and the cut corner facing out. (fig 2) 3. When you release the SIM, make sure it is locked into position behind the catch so it will not spring out. 4. Replace the bumper and turn on the device. Any problems, let me know :) Si

you can try to fold a small peice of paper like 3 times and slide it under the battery, u must use a t6 or t7 screw driver to take apart, but it is a temporary fix