being forced to reboot my i9003 a LOT :S

my problem doesn't really fit into any 1 specific category, so i'm just gonna put it here. lately, my phone's being acting up in ways and i've been forced to reboot it enough times to be concerned in the past couple of days

there was that one thing where i had to reboot my phone twice due to installation problems (i posted about it not too long ago; july 10th, to be precise)

then last night, while connecting my phone to my laptop to charge it, something happened and it froze (though for various reasons, i blame it on laptop/driver issues, i could totally be wrong)

and now today, my phone wouldn't get any signal and would keep telling me it was stuck in flight mode (even though wifi was working and so was bluetooth as long as i accessed it from anywhere but the settings); powering off and powering on solved the problem

is there something wrong with my phone that i should be worried about? if so, please let me know

What do you mean about "installation problems"?
Have you done an upgrade?
Via Kies or Odin?
Which ROM are you on? pls. dial *#1234# What can you see?

PDA: I9003JPKE1
PHONE: I9003JXKA4
CSC: I9003OJPKC2
Build Info: Tue May 24 18:26:54 KST 2011

by installation problems, i meant that this one time i was installing a game (40 mb apk file) that was takin wat i thought was unusually long, so i rebooted it by pulling da battery (in retrospect, that might've been hasty of me). then, a day l8er, da phone crashed while installing a live wallpaper, so i rebooted again (using da power button). when i checked how da wallpaper was doin, it was installed perfectly fine (i deleted it after clearing its data anyway, just to b safe. wasn't that great a wallpaper, anyway)

i did flash from da stock froyo (dont kno wat rom that was) to da kp7 gingerbread and then to jpke1, accidentally getting da computer!phone screen and bricking my phone (respectively). in the end, no upgrade

care to suggest an app to me that would back my data up WITHOUT any rooting/deodexing/watever. i installed this free app called 'appsaver' for situations like this, never had a chance to try it, but it says that it'll save an apk of all my apps

i'd also appreciate it if this app could back up all da data related to that app (such as cache files and save games for games, skins and such for beautiful widgets, etc)