Kernels causing reboots? Or is it something else

[LinuxNewb]

When I was on DocRambone's 7.5 JPA with the older ReOrient kernel 2.1.1 I never had soft reboot problems and then it seems I started getting them after a lot of the Captivate kernels started incorporating these small tweaks.

After reading a lot of other posts other people have been having this same problem but we have no idea what is causing it. At first I thought it was one of the tweaks that you enable in the new recovery ULF tweak section but after disabling all those tweaks and doing a factory reset I was still getting them.

I tried a very untweaked setting with haptic feedback and only bln (no lagfixes, etc...) and it still happened.

Has anyone been able to find the culprit? I've tried 2 different kernels: Reorient and SetiroN's.

When I have my phone in my pocket and I'm driving I'll randomly feel haptic feedback even though I dont have a call or text and shortly thereafter I'll get 2 small vibrations and then a reboot. Once it reboots it seems to come back up for a few minutes and reboot again. I was using ChompSMS with BLN and haptic enabled and that was pretty much the only things I changed from stock.

P.S - The purpose of this thread is to put a collaborative effort in finding out WHY our phones are restarting for some unknown reason. As this community and devs grow, sometimes problems like this arise.

 

[smokestack76]

I have seen a few post about the reboots. I have never had any with the kernels. Its kinda strange some of us dont have the issue.

 

[Pirateghost]

there are several reasons for soft reboots.

if you are running an i9000 rom with a captivate modem, you will get them
if you are running an i9000 rom with a particular modem that doesnt work in your area, you will get them when the modem tries to hand off between towers.

you can get them from oc/uv, bad framework hacks, bad rom, etc. it is all circumstantial, it all depends on what changes you have made from stock....

 

[LinuxNewb]

there are several reasons for soft reboots.

if you are running an i9000 rom with a captivate modem, you will get them
if you are running an i9000 rom with a particular modem that doesnt work in your area, you will get them when the modem tries to hand off between towers.

you can get them from oc/uv, bad framework hacks, bad rom, etc. it is all circumstantial, it all depends on what changes you have made from stock....

The DocRambone 7.1 and 7.5 I9000 ROM uses the JPP modem if I'm not mistaken, and I never had reboots. It wasn't until I went to reorient kernel 2.1.2 (or 2.1.3 can't remember) that these reboots occurred.

Right now I'm doing Doc 7.6 MikeyMike01 with JG8 modem and SetiroN 1.2. I also had a previous setup of using JPP and a different rom with both kernels and had reboot problems.

If the modem is somehow causing reboots I may go to the stock captivate modem and see what's going on.

So far in my apartment the phone has not rebooted by itself (has had a constant HSUPA connection). I'm also running the ROM stock without recovering any of my apps. When I leave here soon I'll see if my phone restarts. If it does, then it would appear a modem issue may be at hand.

 

[LinuxNewb]

I have seen a few post about the reboots. I have never had any with the kernels. Its kinda strange some of us dont have the issue.

What type of setup do you have?

 

[smokestack76]

What type of setup do you have?

Cog 2.3b modded with setiroNs kernel. No oc/uv enabled, Using the jpp modem with Hsdpa working.

 

[darkamikaze]

For some reason clearing dalvik cache and fix permissions in recovery did it for me..i haven't reboot since

xdaApp via Captivate

 

[LinuxNewb]

For some reason clearing dalvik cache and fix permissions in recovery did it for me..i haven't reboot since

xdaApp via Captivate

If my phone crashes ill try that and see if works. So far at home it's been perfect.

 

[smokestack76]

If my phone crashes ill try that and see if works. So far at home it's been perfect.

That makes me think modem.

 

[darkamikaze]

That makes me think modem.

why is that .. ? soft reboots did only happen to me when I wasn't home lol

 

[Pirateghost]

why is that .. ? soft reboots did only happen to me when I wasn't home lol

as i stated earlier, the soft reboots usually occur due to modem/rom incompatibilities when the modem is trying to hand off from network to network.

this was a part of our experiments with the ji6/jpk roms that boomerod, shep, and several others were testing. it has to do mostly with the 850mhz frequency.

 

[darkamikaze]

interesting.. well i'm on JPP right now.. so far stable

 

[Pirateghost]

interesting.. well i'm on JPP right now.. so far stable

i am on jpp right now also, and am about to go for a drive to make sure its completely stable with the handoffs.

 

[tytdfn]

I remember one time i did a certain combination of install rom, restore apps and apply jfs lagfix and a popup came up that said i had mismatching uid's and that i had to format /data directory.

Sure enough soft reboots all.over the place after some fc's.

I found that the best way to use the lagfix is to restore apps b4 lagfix and activate the tweaks at the same time as the fix. It works for me

Sent from my GT-I9000 using XDA App

 

[fatttire]

The JG8 modem for me in Shep's ROM causes frequent soft reboots. As soon as I get rid of it, problem solved.

 

[LinuxNewb]

The JG8 modem for me in Shep's ROM causes frequent soft reboots. As soon as I get rid of it, problem solved.

Ya... as soon I started driving my phone would restart. When it's at home nice and solid connection theres no problem lol

So if we narrowed it down to a possible modem issue lets start testing which ones work.

Fatttire - If you could attach the modem you're using so we can try it out that'd be cool did anyone play with the combi bands or any other settings within the service mode?

 

[LinuxNewb]

I remember one time i did a certain combination of install rom, restore apps and apply jfs lagfix and a popup came up that said i had mismatching uid's and that i had to format /data directory.

Sure enough soft reboots all.over the place after some fc's.

I found that the best way to use the lagfix is to restore apps b4 lagfix and activate the tweaks at the same time as the fix. It works for me

Sent from my GT-I9000 using XDA App

I didn't even restore apps or do any lagfixes and I'm having this issue Good to see yours worked for you though. Hopefully we'll find a modem thats compatible with this JPA/JPP setup.

 

[K-mart Shopper]

I've only used stock modems on our two captivates - occasionally they will restart out of the blue.

Once in particular I think it was because of a live wallpaper. After disabling it, everything seemed smooth running again. I just use plain black wallpaper and mine never reboots.

 

[LinuxNewb]

I've only used stock modems on our two captivates - occasionally they will restart out of the blue.

Once in particular I think it was because of a live wallpaper. After disabling it, everything seemed smooth running again. I just use plain black wallpaper and mine never reboots.

Ive done so many weird configs of roms/firmware/kernel/custom frameworks and I've never had an issue with reboots. I ran a 2.1 i9000 setup with HSUPA and that never ever reset on me.

 

[arffer]

JG8 is only to start with to enable 850

The JG8 modem for me in Shep's ROM causes frequent soft reboots. As soon as I get rid of it, problem solved.

The JG8 is an Eclair modem, not Froyo. Its purpose is to use at the beginning of an install from stock JF6. Once you have the rom and kernel you want, you need to replace it with a Froyo (suggest JPP) modem.

Don't leave yourself running a Froyo (i.e. Shep) rom with an Eclair modem, you are just asking for trouble.