My blackjack2 does the same thing. The phone service just turns off automatically every now and then. It is so annoying. Except for that glitch and the fact that it likes to freeze sometimes, i love my phone. I wish these problems can solved. Do u think it might be a problem with the battery? Highly doubt that because the battery life is still long. But it is a year old and I have put the battery in the freezer several times before when i couldn't find my wall charger. I was hoping someone would tell me that yes, it could be a battery problem so that I could go ahead and buy a new battery for it.
I found that when I locked the keys, it stopped shutting itself off. I guess I was hitting the power button or something. I just keep the keys locked all the time now, except when I'm using it. Hope that helps.
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Mine did this after being dropped. I worked on it for a long time- finally got it to come on...then had to turn if off to fly. I spent a long time trying to figure it out....I am no tech expert- just an athletic trainer so to me if I drop it something must have shifted so...I tried to fix that. I took the back and the power button off (the power button has a small stretchy loop attached-- do not tear this or you can't get it back on- you need to loosen up the key and tilt it back and down to unloop it). There is then a small "power button" that gets clicked under the big one. The contents of my phone had shifted so I gently pushed the button down and forward into the phone (I actually tried severally directions). It does not have to be forceful- I was very careful. And "poof" my phone turned on and I am much happier. ;) Then you just re-attach the loop and you are set. I hope this helps anyone looking for answers- I couldn't find any other suggestions anywhere that were sucessful for my situation. I now do not have to spend money on a new phone. :)
Try doing a hard reset or reformat your phones memory card. Turn phone off and hold the directional pad UP while turning the phone back on. Follow directions on screen. Also try taking the battery and SIM card out for 20 min and then put it back into the phone. There are two patch's avalible to download to update your phone. Click on the link below to download the Blackjack II user manual and patchs:
This is actually a bug in the BlackJack II's firmware. If you power the BlackJack II off, but you're unable to power back on, try removing the battery for about 10 seconds, then reinsert the battery and power back on. The power button should work now.
(At the moment there's no permanent fix for this.)
Does that adequately resolve the issue?
Are you turning the BlackJack II off to conserve battery? While flying? Something else?
Go back to AT&T, or find somebody else who has a Blackjack II and put thier battery in the phone to see if this 'jump starts' it. I have had the same problem now 3 times. There seems to be a consistent issue with Blackjacks just not charging after a while, then the battery runs down and you can't turn the phone on again. 1st time AT&T put a new battery in mine and it turned straight on! 3 weeks later it happend again and they gave me a new phone AND another new battery. 3 weeks later the same thing has happened again with thenew phone. Never seen this happen with any other phone model.
If the Red Led stays turned on it is as simple as this.....the solder connecting your power on button to the system board in your phone has worn off..... you must pop the power button at the top of your phone off and you will be able to see where the soldering paste has simply worn off. At my job I have a soldering machine so it was not problem for me. I simply took pasted it back to the board with tin.....now this may require some work. just pop off the top section of you phone with a flathead screw driver and pop out the power button. look closely and you should be able to see where the botton has lifted from the little greenish system board..... Find someone to solder it, put it back together and it works like new.........SEE YA