Sidekick 3 problem

well you may remember me as the guy with all the Sidekick-Slide problems, well I recently got a Sidekick-3 brand new, and I was having a resetting problem on my Sidekick-Slide where it would say "the device will reset it will restart automatically" then it would reset everytime I would sign in, well after about 3 days with my Sidekick-3 it started doing that same thing everytime I sign in it restarts, ive talked to customer service and ive tried a lot of resets and reboots and nothing works, so im thinking this has to be maybe a defective SIM card or something because why else would it do it to both devices, so I think im going to buy a new SIM card and keep my same number and that should work, any ideas?

Two phones, same problem, then yea, I would say its the sim card. You can replace a SIM card and keep your number.
Just make sure to copy all of your contacts to your phone before your replace your SIM, because if all your contacts are on the SIM, and you change the card, all your contacts go bye bye.

ok ill just copy them to my device then, and for some reason I got this text at the bottom of my inbox from like 2006 and I didnt even have the phone then and its from "DANGER" and it says danger, idk what it is

Some messages get saved to your sim card, maybe it's a text message from back then? You may not have had the phone, but maybe the SIM Card?
Or, sometimes the messages that get saved on SIM's get the timestamp erased, so the phone just puts in what it can.

Oh I never had the sim in 2006 tho.