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iPhone users reporting reboots due to high App count

Recently, TUAW has received numerous tips about near random iPhone boot loops that force users to restore their units. This forum thread suggests that these reboots may be due to the iPhone's onboard watchdog system.

The iPhone has to create a new Application Map whenever you load or unload apps to the system. Should the time to create that map exceed two minutes, the phone enters an endless boot cycle.

The solution proposed on the thread isn't of much general use -- it requires jailbroken shell access. You may want to limit the number and scope of Apps you load to your phone (i.e. cut down on those tip calculators and sudoku apps that we know you're secretly addicted to) to achieve the same, stable results.

Fewer apps mean a shorter time to generate that map and a better likelihood that your phone will work with greater reliability.

Thanks, Goran



Recently, TUAW has received numerous tips about near random iPhone boot loops that force users to restore their units. This forum thread...
 

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Jeff

I had the endless loop error and spent a day restoring my iPhone which seemed to do little. What finally worked was the following...instead of restoring set up the phone as new...re-sync without any apps...turn off the phone...log out of iTunes...turn the phone back on and reopen iTunes and log back in...from the Store menu in iTunes select "Authorize Computer"...(it's likely it will say this computer is already authorized but it seems like unless you do this Apple won't recognize you as the owner of the apps and they will continue to crash)...re-sync with all the apps...this worked for me on all but 2 apps (both of which i downloaded when having the loop issue) and all I did for those was redownload them which generated a "you have already purchased this app" message, but inadvertently fixes the error....

mind you I tried the above numerous times but until i "authorized my computer" it didn't work...

don't know if this will help everyone but it fixed the problem for me...

September 09 2008 at 8:09 PM Report abuse rate up rate down Reply
jphilipson

Funny this post is here... I'm in the process of rebooting my iphone right now. Too many apps is definitely the reason.

September 08 2008 at 7:23 PM Report abuse rate up rate down Reply
BikerTony

I have 60 apps, so far only one causes a restart. I believe its because I always keep about a gig free on my 8 Gig 1st gen. Or could it be that I did lots of hacking with every new system release until the App Store came along (there was a mysterious 260 mg of unkown data that I never could erase). I only download apps to my Mac, then to the iPhone. Good Luck everyone--

September 07 2008 at 11:04 PM Report abuse rate up rate down Reply
Dalekkiller

Today was the first day in what feels like forever that I was able to update my apps and turn my iphone off and then on again without all my apps failing. Maybe the miracle fairy has been at work in the app store!

September 07 2008 at 1:36 PM Report abuse rate up rate down Reply
billavi

I had this same problem. I deleted over 400MB of applications and now everything is OK. I got rid of the American Heritage Dictionary (300MB) and aSleep (100MB). The problem isn't necessarily "how many", it's "how much".

September 06 2008 at 10:09 PM Report abuse rate up rate down Reply
Chris Bell

I feel sorry for people who have this problem and haven't jailbroken their phone. I have been able to get my phone working again using ssh when it has happened to me (which is about 5 times).

Besides this, Apple really needs to work on the synching times. It should only take a few seconds to copy each app to the phone but on my phone it takes 5-10 minutes each. what I suspect may be happening is that the software map is being rebuilt after each app makes it's way onto the phone. I can't think of any reason it would take so friggen long to put apps onto the phone and why the time seems to increase with the number of apps already on the phone. The backup process is also excruciatingly long. Fix it Apple!

September 06 2008 at 7:59 PM Report abuse rate up rate down Reply
chuck

So what is the MAX LIMIT of apps I can install on the iPhone before the phone crashed and go to endless reboot? I hope Apple will fix this, and prevent user from installing say 200 apps if there is OS limitation.

Boy, I moved from Windows Mobile to iPhone and we now have this??

September 06 2008 at 5:43 PM Report abuse rate up rate down Reply
Dalekkiller

It's good to find somewhere where people can talk about these issues. I seem to be in the minority elsewhere and just get abuse if I say I've got a problem.
I've got 6 pages of apps on my phone at the moment and it's been fine for nearly a week now because I've not downloaded any updates, turned my iphone off or even been near iTunes with my iphone. As I've downloaded updates to itunes I'm annoyed I can't actually use them. FWIW, I have heard from someone who has this problem with only one 3rd party app installed!

September 06 2008 at 4:38 PM Report abuse rate up rate down Reply
Chaseskip

To me, the iPhone Apps are supposed to make life more convenient. I don't remember the contact saying there is a maximum number or size limit to Apps installed on the iPhone. There are a lot of kool apps that I want to use when I want to, not just when I have time to go home & sync them to my iPhone. If I want to use the app, it's usually not when I'm at home.... This, I believe, is the whole idea & purpose of the iphone.

September 06 2008 at 10:44 AM Report abuse rate up rate down Reply
Tyler R.

This is a huge problem. I have had several of these crashes over the last few weeks-one was so bad the geniuses replaced the whole phone. And it's now happened twice on the replacement iPhone. The only fix I've found is to go into recovery mode and do a restore. What a pain! I hope Apple will fix this soon!

September 06 2008 at 12:07 AM Report abuse rate up rate down Reply
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