yashsingh1/xdaforums huggingface dataset:
[Epic 4G General] sollord:
I've found if I don't run the setcpu profile it will reboot itself I think the issue I'm having there is it will sometimes bump upto 400mhz which has a random reboot issue with the stock voltage. I'm currently testing the lowest mv I can get stable at with 100mhz
[Epic 4G General] KennyG123:
It may be the big jump to 400...if 100 was too low of a voltage and there was a borderline transition to go into a partial wake it would reboot. But with SetCPU you are forcing a screen off profile essentially telling it exactly what to do during that partial wake step.
[Epic 4G General] KennyG123:
Had a reboot this morning. I up'd the 100 Mhz voltage to 975 to see if that helps.
[Epic 4G General] sollord:
Well if you run the phone at 400Mhz it random reboots at stock so hard to say.

I'm having an annoying issue where my status bar vanishes on me for no reason
[Epic 4G General] KennyG123:
I will keep playing with 100 Mhz voltages to get it down to none if I can. As for your status bar, are you running any mods or themes? You might try reflashing them after wiping cache and Dalvik.
[Epic 4G General] sollord:
Bonestock eh17 outside of a different launcher.

My current settings with standard setcpu profile as in op

Tegrak:

Governor: Ondemand

Scaling: 100-1000mhz

Optimization:

--400mhz Core Voltage: 1075mv - Internal Voltage: 1100mv

--200mhz Core Voltage: 1010mv - Internal Voltage: 1050mv

--100mhz Core Voltage: 910mv - Internal Voltage: 1000mv

15hours with 1 hotboot to fix my missing status bar not sure if hotboot voids the testing or not but ill keep it going
[Epic 4G General] sollord:
No random reboots yet but I did reboot to wipe my cache and dalvik in hope of fixing my vanishing status bar will see
[Epic 4G General] robl45:
is there another program that can be used with setcpu to do this that is free?
[Epic 4G General] KennyG123:
Not that I am aware of. Tegrak is $2.31 and it also allows you to overclock as well. Well worth it.
[Epic 4G General] handymanxda:
You guys are doing awesome work here. Thank you all for at least letting us run some GB without the phone rebooting every couple of hours!
[Epic 4G General] JohnCorleone:
Tegrak in action on my rooted stock ET4G...
[Epic 4G General] KennyG123:
Holy Crap! Now THAT is a 4G face-melter!
[Epic 4G General] robl45:
wanted to mention I figured I would try the screen off profile of 100-200. I don't have any program to up the voltage, but figured that might help the random reboots I get when my rdp app is on and the screen is off since it seems to lock the processor at 400 where people said the reboots happen.

well, I didn't get a reboot, the phone just went to sleep permanently until I pulled the battery. thank god it didn't do the permanent no return sleep, been there and done that already and the phone is no longer in warranty.

oh yea, what about voltage control or that other one that lets you set voltage, could i use those?
[Epic 4G General] Forever Justice:
Reboot

A couple weeks and finally it rebooted all on its own. Not too bad considering if I would have never made the change on this post....quite honestly I had thought about but wasnt sure prior to this post...but in any event.......

Good Call!!
[Epic 4G General] KennyG123:
No. Voltage control and the other one only work on custom kernels. Will not work on these stock leaks. Tegrak somehow mods the stock kernel to allow voltage control and overclocking.
[Epic 4G General] KennyG123:
OK new settings have gotten me 2 days with no reboots. They are as OP except:

200 Mhz Core=1025mV Internal=1050mV

100 Mhz Core=975mV Internal=1000mV

Each phone may vary 25 mV either way for optimum performance and no reboots.
[Epic 4G General] snovvman:
Please do report back after more time. It would be so great if this solves the problem. Thanks.
[Epic 4G General] sollord:
I'm at 49 hours with the below tegrak settings and I've had no issue as long as I run the setcpu profile in op. Could others test these settings?

Optimization:

--200mhz Core Voltage: 1010mv

--200mhz Internal Voltage: 1050mv

--100mhz Core Voltage: 910mv
[Epic 4G General] snovvman:
Based on everything I have read about this (and other phones, including HTCs), the voltage required by the CPU varies from phone to phone. Some phones like a little higher while others can tolerate lower. Thus, the values that seem to work well for you may not work for others--just FYI.

Also, are you saying that you _need_ the screen off profiles in conjunction in order to keep your phone from randomly rebooting? How often were you getting the random reboot before?
[Epic 4G General] tbob18:
I must use screen off profiles, otherwise my phone will reboot no matter the voltage. I set all frequencies to 1275mv and disabled the screen off profile and still got multiple reboots throughout the day.

Some seem to have had better luck than I, so it may be worth a try anyway.
[Epic 4G General] poit:
For those of you who have had success with this, has it worked on all the GB leaks, or is there one leak that seems more reliable. I'm thinking of giving GB one more try this weekend since I'm getting really tired of waiting. My tendency is to run the newest leak?
[Epic 4G General] KennyG123:
I am on Hurricane 1.6 with EH17 modem. Was getting 3 reboots a day minimum until this. Now none in 3 days.
[Epic 4G General] poit:
Has anyone tried "stock" leaked roms and had success? If so, which ones?
[Epic 4G General] sollord:
If I dont run the profiles the phone will go upto 400mhz and start randmly rebooting the issue eems to be with stock 200 and 400mhz voltages and the profile bypasses the 400mhz issue and as100mhz is to slow on its own from my testing it causese some weird lag and other annoyances on wake up making it less ujseful but 200mhz works fine and has almost no issues on wake that I've noticed.

In the future I might test 400mhz voltages but with the profiles and voltage tweaks I'm reboot free for 72hours used to get at least 3 random reboots a day on stock eh17 with out it.

Also if I'm not mistaken other don.t get random reboots at 400mhz so its seems to be random differnces causing the reboots
[Epic 4G General] sollord:
That's what makes me think there's an issue with how the phone wakes up when it clocks up from deep sleep to do stuff likme syncing
[Epic 4G General] radji:
Yup. I've had success with rooted/deodexed/busybox EH17 with the EH17Plus kernel. Be patient when you set the profiles and voltages. As stated before, every phone is a bit different. Most people in this thread have had nothing but random reboots when running 400 MHz screen off profile, but for me, the 400 MHz screen off profile is the only one that is stable. So play around with it until you get no random reboots with as low a frequency/voltage as possible.
[Epic 4G General] KennyG123:
Yes those were my thoughts and I think what prompted the screen off profiles in the beginning of this thread.

---------- Post added at 02:28 PM ---------- Previous post was at 02:26 PM ----------

Yes, every phone is different. I am OK with the 100-200 Mhz screen off profile and a little boost in voltage at 100 and 200 Mhz.

Has anyone tried emailing the author's of SetCPU to add voltage control or Tegrak to add screen off profiles? I may do that today.
[Epic 4G General] snovvman:
I used this setting--I did see [I believe] an improvement, but just got a shutdown (screen blank, phone unresponsive) after ~14 hours.

I had really high hopes... Back to the drawing board I guess.
[Epic 4G General] tbob18:
That is a great idea. It would be awesome if there was some way to use a different voltage for screen on/off.

For example, I can run 100mhz and 200mhz @ 750mv while the screen is on all day, but as soon as I turn the screen off it will freeze.. As mentioned before, it probably has something to do with the way it goes from deep sleep to "awake" mode while the screen is off.
[Epic 4G General] KennyG123:
Again, this is all great work here! Thanks to all testing this out. With the voltages I last posted now have 5 days with no reboots or sleep of death.
[Epic 4G General] tbob18:
I'm currently testing some very low voltages.

A word of warning - if you attempt this, make sure you have everything backed up, and that journaling is enabled. :)

I tested each frequency separately, setting the scaling in both Tegrak and SetCPU respectively (1000/1000, 800/800, 400/400, etc)

I tested by lowering the voltage by 10mv until it would reboot/freeze, then upping the voltage by 5mv increments until it seemed stable (by running StabilityTest for at least 10min), then again upping the voltage by 15mv just to be safe.

I started with the Internal Voltage, then with the Internal Voltage set to the "stable +15mv" settings, moved on to the Core Voltage using the same method.

After about 100 reboots/crashes here are my settings:

1000mhz - Core: 1050mv - Internal: 975mv

800mhz - Core: 925mv - Internal: 920mv

400mhz - Core: 795mv - Internal: 870mv

200mhz - Core: 1010mv - Internal: 870mv

100mhz - Core: 910mv - Internal: 870mv

The screen off voltages are a bit harder to test due to random reboots. I am still using the 100mhz-200mhz screen off profile.

A low Internal Voltage does not seem to cause random reboots, it seems to be linked with the Core Voltage.

Battery life so far is phenomenal, I just had an hour long phone call and the battery only went down 5%.

So far I've been testing for about 10 hours, no reboots or crashes yet.. Hopefully it stays that way.

It was quite time consuming, but it was fun! :D
[Epic 4G General] KennyG123:
Tbob, your hard, tedious trials are much appreciated. As it is I have no reboots at all. I will see how these latest numbers work out for you. Again, thanks!
[Epic 4G General] ugothakd:
Its definitly a voltage issue. I got a random reboot on MIUI after undervolting.

sent from my miui-ified epic
[Epic 4G General] KennyG123:
Absolutely no reboots in a week! Tbob how are those lower voltages working out?
[Epic 4G General] juanaraya92679:
As soon as I try the 200MHZ voltage settings my phone freezes up and I have to pull the battery..... do I just start raising the core and internal until it doesn't freeze? Why would mine freeze and yours not?
[Epic 4G General] tbob18:
Nice! It would be nice to be able to use lower voltages for better battery life, but the tradeoff is being able to use a stable GB. :D

When I was using Bonsai B16 at those voltages I had no reboots/freezes for over 24h.

Now I'm trying the new EH17 Bamboozle, which did not like those voltages at all, it kept freezing up and rebooting.. I've since bumped all the voltages (both core and internal) 10mv and it has been working fine for the last ~12h.

It may have something to do with EH06 vs EH17.
[Epic 4G General] KennyG123:
Yeah EH17 rebooted like crazy on my phone vs only a little for EH06. Now a week on EH17 without a reboot is awesome. So EH17 definitely causes more reboots.
[Epic 4G General] tbob18:
Every phone is different, some will undervolt more than others.. You'll have to experiment a bit to find your phones limit.

You need to start at the stock voltages, then lower it until it freezes. Then bump it up in 5mv increments until it is stable in StabilityTest (run for at least 10min).. Then finally bump it up 15mv just for good measure.

If you are using a screen off profile to prevent reboots, (100-200mhz for example) it will be harder to test those frequencies.

From my testing, if the internal voltage is stable with the screen on, then it will also be stable with the screen off. The core voltage is the one where more voltage is required when the screen is off vs when the screen is on.. For example at 200mhz I can run a core voltage of 750mv all day while the screen on, but with the screen off it requires 1010mv or I will get random reboots or freezes.
[Epic 4G General] juanaraya92679:
Thanks Tbob, i will give it a shot later tonight and see how far my phone can be pushed. Does it make a huge difference in battery life by messing with the voltage?
[Epic 4G General] tbob18:
For me it made a massive difference while in use, and it does not get nearly as hot. When asleep it did not make much difference (1-3% per hour drain, like normal).

Make sure you have everything backed up, as you could lose data.
[Epic 4G General] xopher.hunter:
Wow I just popped in to see the progress and wow I think I'm gonna try a eh17 rom right now!
[Epic 4G General] juanaraya92679:
How are people getting 1-3 percent an hour drain? :( Is it normal that I get about 5-8 percent drain an hour? I only have active sync exchange account that receives emails fairly frequently throughout the day but thats the only syncing I have setup. Is this normal battery life?
[Epic 4G General] zukboy:
I'm running EG22 rom and EH06 modem, and have just recently start getting these reboots, and freezes. What other combos should I try?
[Epic 4G General] tbob18:
Have you tried the settings in the OP?
[Epic 4G General] juanaraya92679:
Man TBOB my voltages are way off compared to yours, I wish I had your phone. :(

I got a stupid refurb

heres where I'm at so far

Tegrak

100mhz - Core: 910mv - Internal: 870mv = Stable

200mhz - Core: 1010mv - Internal: 950mv = Stable

400mhz - Core: 900mv - Internal: 980mv = stable

800mhz - Core: 980MV - Internal: 980mv = stable
[Epic 4G General] tbob18:
Well, it is still a big improvement over the stock voltages.

What is the date on your phone? Mine is Nov, 2010.

My phone does seem to like overclocking/undervolting, 1.5ghz is stable, and 1.6ghz will benchmark (and crash eventually). I must have gotten pretty lucky.
[Epic 4G General] KennyG123:
Have you frozen battery draining apps like maps, google +, Talk, DRM services, and any video app? Are all your other syncs set to manual or never? Try increasing your mail exchange sync time to see if that helps. On 3G I get about 2% an hour, on wifi it is about 1% every 2 hours.
[Epic 4G General] juanaraya92679:
Update on my successful undervolts

100mhz - Core: 910mv - Internal: 870mv = Stable

200mhz - Core: 1010mv - Internal: 950mv = Stable

400mhz - Core: 900mv - Internal: 980mv = stable

800mhz - Stock

1000mhz - Stock

I couldn't get the 800mhz and 1000 mhz to play nice. :( I willl mess around with it more on the weekend. Hope this helps others who are wanting to try this undervolting out. This is my first time around trying this and i'm excited to see how battery life will pan out.
[Epic 4G General] juanaraya92679:
I've used the superfreeze mod that was in another thread, does that do everything your talking about in one command?
[Epic 4G General] ugothakd:
No, not everything
[Epic 4G General] bjl95mustang:
I am getting random reboots a coupe times a day. I went out of the country and turned my phone to airplane mode to cut down on international text costs. It did not reboot once and the uptime clock was over 4 days without a reboot. As soon as I got back to the usa and turned off airplane mode I got a random reboot in the airport a little bit later. Just something I noticed.
[Epic 4G General] toadlife:
Interesting. Various modems don't solve the problem, so I wonder if the ril library (/system/lib/libril.so) might at fault.
[Epic 4G General] ugothakd:
I doubt it, then cm7 wouldn't be experiencing reboots.
[Epic 4G General] KennyG123:
So that would verify that the phone reboots coming out of deep sleep to get data. In Airplane mode it would never try to sync anything.
[Epic 4G General] bjl95mustang:
I have also noticed that my modem signal will drop off and go in and out before it reboots. And the back side of the phone will be hot like the modem was working hard. Then it reboots as soon as the screen turns off. And all I did was check my e-mail, nothing crazy.

I have tried various modems and they all have the same issues.
[Epic 4G General] KennyG123:
i used to get that back in EF02. Never from EG22 and up. What ROM are you running?

Side note: 1 reboot in 9 days..not too shabby. And I believe it was because I was at the outer range of my wifi outside my house and the disconnecting and reconnecting may have triggered it. Not enough to mess with my voltages though. I am extremely happy with how it has been running.
[Epic 4G General] bjl95mustang:
Stock EH17
[Epic 4G General] KennyG123:
And which modem? I am running Hurricane with the EH17. My email syncs are set for 1 hour and all other syncs to manual or never. Are you typically in a low signal area?
[Epic 4G General] EnergyBeing:
This is pretty cool. I haven't had a random reboot in a while though.
[Epic 4G General] KennyG123:
This should be in development. I never realized how many users don't read the General sub-forum. So many complaints in the GB ROM threads about the random reboots. I still get 1 about every 5 days or so. Always in the same spot in my house and on wifi. But I used to get 5 a day. I keep playing with the voltages when it happens to see if I can make it zero.
[Epic 4G General] excubitoris:
Have the same kind of problem with stock Gingie with stock Galaxy S i9000.

Did upgrade week or so off and after that had some 10 restarts.

Strange.
[Epic 4G General] KennyG123:
That is discouraging that it is not fixed in the i9000 GB stock. Hope they were able to fix it for the Epic then send you guys a maintenance fix. In the meantime this works and allows overclocking as an extra benefit.
[Epic 4G General] cheema:
Do you have to run both setcpu and tegrak side by side? Or installing just one and setting it up according to the recommended settings in the original post would be sufficient?
[Epic 4G General] algorhythm:
Both of them.
[Epic 4G General] KennyG123:
Neither app does everything. SetCPU cannot control voltages and Tedgrak is not capable of setting a screen off profile.
[Epic 4G General] toadlife:
Try this

Try the kernel in this thread. You can just flash it with ODIN.

I loaded it the night of the 19th and haven't had a single reboot or GPS freeze since then.

Just make sure you have the EH17 modem, or the "phone" part of your phone wont work. ;)
[Epic 4G General] KennyG123:
Today is only the 21st. I didn't get my first random reboot for 3 days on EH17. Let me know after the weekend. Keep checking your up time so it doesn't sneak one in on you.
[Epic 4G General] toadlife:
I could never go more than 12 hours without reboots on EH17 before this kernel. Usually I would get them every couple of hours. I rebooted 18 hours ago and before that had a similar amount of up time so I'm optimistic.

:)
[Epic 4G General] tbob18:
Isn't that just for RFS roms?

Also, I'm still running my low voltages on Bonsai B16. No reboots since. Although I went to other roms in between, I always came back to Bonsai as it just seems to be the most stable.
[Epic 4G General] toadlife:
Yeah, it's for RFS only I think...but I prefer RFS and am running the RFS version of the Stocky-ish ROM, so it worked out for me.
[Epic 4G General] tbob18:
How does the keyboard work? I'd love to have a properly working keyboard.
[Epic 4G General] KennyG123:
Apparently different numbers are needed for third party batteries. I get no reboots on an OEM battery but get a kind of sleep of death that goes into a reboot when I hit the power button on the cheap battery Best Buy sent me. But only once in awhile which is still great.
[Epic 4G General] poit:
Now that we have source for a GB kernel, would it be possible to bake some known good voltage and speed settings into the kernel?
[Epic 4G General] tbob18:
Good question. It should be possible, but the voltages required may be different for the newer code.

I'll do some testing once there is a EXT4 compatible kernel ready.
[Epic 4G General] poit:
Well, since it's Oct 24th with not a word from Sprint about gingerbread, I am giving this another try.

I've Odined "stock" EH17 again, Odined CWM and flashed SU, flashed mkasick's source compiled GB kernel with the keyboard fix on it, and reinstalled most of my apps. We'll see if this kernel is enough to fix the reboots for me. If not I guess I'll start tweaking voltages.

On a side note, I've found that I can't restore data that I backed up using My Backup Pro on any of my Angry Birds apps without causing FC's. I'm assuming this is because of some differences between Froyo and GB. Anybody know any trick to make this work or am I going to have to kill all those pigs again. :(
[Epic 4G General] sollord:
Tbob can you try running a 100-400Mhz off scrren profile with those settings?

Quoted the wrong post ment to quote the one with all the low low voltage tegrak settings
[Epic 4G General] tbob18:
I had already tried that, it would still reboot, even at stock voltage.

I've been running Thunderhawk for the past few days, it seems to be a lot more stable than any previous rom I've tried.

Without any screen off profile, and the some pretty aggressive undervolting (via Tegrak) I'm only getting 1-2 reboots every 2-3 days.. Not perfect, but much better than before.

I seem to have missed out on Roddericks test kernel, so I'm not sure how that does with random reboots.
[Epic 4G General] ac16313:
Can someone link me to the setcpu thread here on xda?

I just adjusted my voltage values by like 25mV each without tinking twice about backin up or anythin lol really bad idea

Sent from my SPH-D700
[Android Q&A, Help & Troubleshooting] BrarSS:
Hi All

Here's a new member extending warm regards to everyone on XDA.

Need help on Rooting my Dell XCD 35, which is running Android 2.2.

What I have successfully done so far is that I have installed JDK and SDK for Android. However, when the SDK tries to connect for downloading repository, it gives me connection times out error (Internet working otherwise). To install the Phone Drivers, I also tried to search for the driver manually, but to no avail. I am really stuck at this time as I don't want to go ahead and start rooting without installing the Phone drivers on the computer. I am assuming it is not advisable.

Please help as the On Phone memory is starting to run out and I need to be able to work as a root user so that I could move some more apps to SD card and tweak the system for performance.

Thanks.
[Atrix 4G Q&A, Help & Troubleshooting] chesterr:
Hey I got this phone and it had the "version 4.2.11.mb860.retail.en.fr" and I tried to unlock the bootloader and tried to install gingerbread which is given in the motorola site.None worked for me, so what happened was I couldn't do any,and then I installed the clockworkmod with the wall charger and I searched that if something would go wrong with it cause I felt it kinda risky and I searched it again but in instructions and in some other forums said can install a custom rom. so I backed up everything and installed the cherry rom which i can find easily in the development forum, then after that I get this error msg at the boot screen "Failed to boot 2" "Starting RSD mode" so I downloaded the "Atrix 4G - US MB860" "Version: 4.5.91" 2.3.4 and downloaded the RSD lite application for windows 7 and tried flashing this software and at 100% it fails and fails. I don't know what I should do.and I'm downloading another froyo sbf file to reflash the system, I wish someone can help me over here and I really appreciate it. :|
[Atrix 4G Q&A, Help & Troubleshooting] marko!:
You need to flash an sbf that fits with your phone!

You tried too much at once. Do some more research before you try anything again.

See:

Pudding thread

Atrix firmware super thread

(both stickies)
[Atrix 4G Q&A, Help & Troubleshooting] Phalanx7621:
^This. People don't realize that flashing ROMS, custom kernels, unlocking, all this stuff is going to be risky. This is not for people who have little to no knowledge of how to do this stuff. If you ARE just starting out, like all of us are at some point, READ read READ. Search multiple articles and multiple sources before attempting anything and if you're not sure if you should do it, don't. Unless you have the money to spare to replace a bricked phone. When I took the plunge into the custom ROM scene, it was a new experience for me. But I made sure to follow instructions to the LETTER and have been fixing / working with computers for over a decade so experience does help a bit. Remember, the search button is yer friend and it will help you out when you're looking for more information on a topic.