yashsingh1/xdaforums huggingface dataset:
[G2 and Desire Z Q&A, Help & Troubleshooting] aevh:
Desire Z freezes

Hi,

I also have some random freezes of my Stock Desire Z, I didn't do a thing on software or hardware side.

I run Android 2.2.1 Build 1.72.405.2 CL296256, provider KPN (Rabo Mobiel)

I got rid of the hangs after the upgrade from 2.2.0 then after several weeks it came back, only solvable by removing the battery.

I tried to figure out what's wrong and I think I have several clues:

- mostly some time after using Google Maps

- mostly when Wifi was on (it might be that the Wifi has limited connection and it screws up the data)

- after the reset I allways have updates from Market available

I can't remeber the Memory widget I ran, which I felt was having a good influence on the hangs.

I'm not happy with this behavioure, but cannot determine if it is hardware or software, it's not helping much that the phone just stalls :mad:, a reboot is irritating but less then a complete hangup when you don't know how long it has been in that status.

P.S. I don't run juicedefender

Cheers, Edward
[G2 and Desire Z Q&A, Help & Troubleshooting] lost800:
I have STOCK G2 ROM.

S-off, CID, unlock via http://xdaforums.com/showthread.php?t=855764

NO Cputuner or SetCpu (well I uninstalled them before these problems cropped up)

Used G2 for about a month and a bit no problems. Installed launcher pro then started to experience this problem. Coincidence? Not sure. Uninstalled and it did not help. Uninstalled several more apps that I recently loaded (skype, minimalistic text, Gtab Simi clock...) didn't help.

Wiped phone, nandroid backup to original ROM, restored using TB. Worked for a few days then just started happening again.

I also was using 2 chinese batteries I bought from eBay. Not sure if this has anything to do with it either.

:(

// Just reflashed, HTC stock battery. Froze up within an hour. Too bad I bought this off of ebay, no warranty :( :( :(

// Factory Reset, restored apps and data with TB, still freezing :(
[G2 and Desire Z Q&A, Help & Troubleshooting] CasterOil:
Hi all

I'm new to this forum (sorry, a newbie about to make a whole load of gaffs, no doubt), but I am at least fairly tech-savvy. I've had HTCs for years, right from the days of the 2000 vintage Compaq Ipaq!!

My wife & I bought two Desire Zs at Christmas, and it was therefore 50:50 which box was opened by whom. It appears I picked the dud, as I'm suffering from the issue described by all you guys, and in the other thread:

http://xdaforums.com/showthread.php?t=857584

For the sake of adding more evidence to this otherwise confusing issue, I thought I'd join the forum:

So:

1) The device is not modded in any way. Standard ROM from HTC, being used on the UK T-mobile network. Currently at Android 2.2.1, Kernel 2.6.32.21-g540976a, Build 1.72.405.2 CL296256 "release-keys". This was installed on Christmas day, over the air.

2) There has been no playing with processor speeds or memory management.

3) The first crash of this nature was either on Christmas Day or Boxing day (ie the day-after-christmas-in-England); can't quite remember now, but certainly after the ROM update.

4) I have had this occur irregularly, but in increasing frequency, since that date. I think I'm probably into double figures by now, but I've only started to log them recently.

5) I was starting to think that there was some correllation with GPS applications. The phone would die after using Google Earth, for example, but not immediately. It may be after two or three standby's that it would fail to respond on the fourth, for example.

6) I had a very bad day a few weekends ago where the phone died four times in a single day. I had been using geotagging-photos (in the standard HTC camera app)... plus location-based services such as Yell and Google maps.

7) I tried keeping GPS disabled, and to be fair, there was no evidence of it crashing at that point. But I use GPS too much to make this plausible for a long time.

8) I wondered if it was due to the motion of keeping my phone in my pocket, but it died over night on the bed-side table on Monday-Tuesday, where my last usage had been the Friend-Stream widget/app. GPS was on...

During all of this, my wife's phone has not shown any of these symptoms. Whilst she uses Google Maps, Google Navigator & HTC Navigator a bit, she generally keeps the GPS turned off except for specific odd occasions. Hers has not crashed in this manner...

About to contact HTC to see what their response is...
[G2 and Desire Z Q&A, Help & Troubleshooting] lost800:
This has occurred for me regardless of app usage.

It can occur right after a fresh reboot after being fully charged.

// Wow, I was in the middle of sending a txt and it just shut off on me...

I really wish I had a warranty on this :(
[G2 and Desire Z Q&A, Help & Troubleshooting] Kaluso:
Hey there.

I can clearly pinpoint the problem with my desire z to the GPS. In the first view weeks I used it regularly and my phone froze, but only when the gps sensor was not active anymore (and the phone had gone to standby once or more). It didn't matter which app I used. For a while now I haven't been using GPS and my phone runs smooth as hell.

@lost800: I suppose your problem has a different kind of nature.

I already contacted HTC (very good support) and they told me to send it in to repair. I need my phone for work at the moment and I haven't found time to do this.

Due to the very small amount of ppl having that problem, I suppose it's an hardware error.

Greetz

Edit: Just out of curiosity, is there any meaning to the kernel version? Or has every mobile phone the same one?
[G2 and Desire Z Q&A, Help & Troubleshooting] dwardo:
Hello all, here is my input on this problem

My DZ has started freezing while I'm doing stuff:

* playing cards

* writting an email or a text

* using xda app

* ...

I never have GPS on. The frequency has greatly accelerated in the past 2 weeks but the weirder thing is that the last 3 times I remove sdcard and then put it back in to get the phone to boot, but it does not boot... it hangs on HTC logo for a long time (I've left it there for up to 15 minutes to see...) I eventually just remove the battery and from the phone and wait before trying to put it back in and boot...

Wait times required have varried from 5 minutes to several days.

I have observed this behavior on Stock 1.34.405, Virtuous 0.9, Virtuous 1.0.0 and back on stock 1.34.405 Today. I've wiped, flashed stock RUU nothing has helped. This puppy is going back for repair/exchange (it is 3 months old).
[G2 and Desire Z Q&A, Help & Troubleshooting] dwardo:
I called HTC support to see about getting the phone replaced. After explaining to the guy that it was freezing and then not rebooting when I pulled the battery out, the first thing he said was: "Did you install apps from the market ?"

Given that I replied by the affirmative he wanted me to test rebooting in safe mode and seeing if the freezes still occured before moving on to a replacement. He claimed that some market apps are not "properly coded and can mess up the phone"

I asked for and got the instructions how to reboot into "safe mode" (hit keyboard S key at HTC logo and stay on it while it boots)

In "safe mode" you can still install apps but they won't appear in the app drawer so you won't be able to start them (you can start them if they are on your home pages though :)). No backgroud apps will run though (bbc, task killer ...)

Well I ran in safemode for 6 days and used the phone as I always do (work email, leisure email, web, video, camera, games, GPS, bluetooth etc...) and the darned thing ran perfectly. No freeze during those 6 days (the last few times it took less than 2 days to get a freeze).

I therefore decided it was time to test it again in "normal mode". Before rebooting I removed my task killer as for me this was "THE APP" that "safe mode" was really blocking from running on my phone...

Well It has been 2 days now and still no freeze. If it stays that way for another week I think I will have a rather good idea of who was the culprit...

Will keep you all updated and keep my fingers crossed.
[G2 and Desire Z Q&A, Help & Troubleshooting] CasterOil:
Hi guys

An update:

HTC over the web-support were very helpful. Immediately they suggested that the device needed to be taken in for repair. In subsequent stages of the dialogue, they stated that the mainboard would be replaced.

A couple of weeks ago, I cleared down my device, packaged it up and waved goodbye to it (sniff...). HTC took it and...

!!DID NOTHING!!

It came back on Monday with an *old* ROM installed (1.35... If I remember correctly), and a statement saying 'no fault found'.

I've built the phone back up to where it used to be, including installing the over-the-air update to 1.72.405.2 (I need this as there's an activesync exchange bug in the old ROM) and within 24 hours, the device was unresponsive again :(

I have just written back to HTC to find out what the next steps are. I'd be interested to see if they suggest some debugging actions, like the safe-mode option, for example.

I've also asked them directly if their engineers have any clue what is causing this? Fundamentally, I don't see how any app should have the power to kill the device, however badly written it might be. That suggests insufficient controls/barriers in the OS.

Throughout this period, my wife's phone has continued to operate perfectly, even with some extra GPS playing to try to force a failure. So, we are now looking for any differences that could help to pin this down further. One difference is that she has never enabled the HTCSENSE.COM account on her phone, whereas I had. Perhaps there's some problem with the Phone Location functionality (in addition to the fact that I have to be in a yacht off the West coast of Africa for it to accurately show the phone's location). To test this, I've removed my HTCSENSE.COM account this morning.

Dwardo: I think your issue is slightly different, but the safe-mode info is useful.

Thanks

Andy
[G2 and Desire Z Q&A, Help & Troubleshooting] sekhar_777:
Greetings. to add to this, I have recently rooted my Bell Desire Z and tried a number of Cyanogenmod ROMS (7.0.0-RC1 & 6.1.1). The same GPS-on freeze persisted. I have also gone on to upgrade the Radio on the device. including 12.28h.60.140f_26.06.02.27 (same issue), 12.28e.60.140f_26.04.02.17 (still testing). Getting quite frustrating now as it really seems to be a hardware issue. No SOD (sleep of death) issues if I do not turn on the GPS and Google Maps.
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
I have a feeling this is a kernel issue, or at least the kernel is part of the issue. Here is my phones history on the matter:

- Desire Z froze while screen off (sleep of death, SOD) a few times the first few days I owned it. Stock ROM. Did not seem associated with GPS.

- Flashed Godspeed kernel in order to overclock (using SetCPU). SOD issue disappeared for a couple weeks.

-Installed CPU Tuner, due to claims that it was easier on battery life then SetCPU. Immediately started having SODs again.

- Uninstalled CPU Tuner and installed SetCPU again. No SODs. Continued this way for a couple months.

- Flashed CM7 RC1, and later RC2. Both ROMs freeze/SOD if I turn on GPS and turn the screen off. Could reproduce the issue very easily, every time I turned on GPS and turned off the screen, the phone would SOD within 10-15 minutes.

- Flashed pershoot's kernel. Been on that for a few days. Cannot force a single freeze/SOD by turning on GPS and turning screen off, despite letting the phone sit with screen off for long periods, and with multiple attempts.

Its looking pretty good for me that flashing pershoot's kernel has solved the freezing problem for me on CM7. If you are having this issue, I recommend trying a new kernel.
[G2 and Desire Z Q&A, Help & Troubleshooting] FayezZ:
Running CM6.1.1 on my G2 and have the SOD problem (had it with stock firmware too.) Tried Pershoot's kernel (2.6.32.33, via ROM Manager) and problem did not go away.

Not sure if it has been mentioned before or not, but even if my phone goes into a SOD state, it continues to pulse the trackpad light and blink the LED to indicate e-mail/text. Of course, I can't wake it up no matter what I do and have to pull the battery. My brother has a G2 (which he bought at the same time as me) running stock firmware and he has never had the SOD problem.
[G2 and Desire Z Q&A, Help & Troubleshooting] teufeldog:
I started having this problem last night. In the last 20 hours I've had four SOD episodes.

I'm running:

Mod version: CyanogenMod-7-03232011-NIGHTLY-Vision

Baseband: 12.28h.60.140fU_26.06.02.27_M

Kernel: 2.6.32.28-cyanogenmod-gda17718 shade@toxygene #1
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
Try pershoot's kernel. As I noted in my post just a couple above yours, I could pretty much get CM7 to SOD within 10 minutes by turning on the GPS and turning the screen off. But after flashing pershoot's kernel, the issue disappeared.
[G2 and Desire Z Q&A, Help & Troubleshooting] aevh:
freezes

Hi guys,

I have my phone back after almost two weeks, they tested it and found that the GPRS module was causing this behavioure. The mainboard was exchanged, I didn't experience a freeze (now two days, I'll post if a freeze occurs).

My internet speed (I only use 128k GPRS) has increased tremendous, I always thought it was a bit slow.

Cheers, Edward
[G2 and Desire Z Q&A, Help & Troubleshooting] Happy_Jack:
Thanks for sharing your experiences. I am suffering exactly the same symptoms as you reported and followed your recommendation to use Pershoot's kernel (2.6.32.35 for Gingerbread with CM7 RC2). Unfortunately I saw the "SOD" almost immediately :( so maybe there's another factor or the hardware problem is subtly different. I'll see if SetCPU makes any difference...
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
I have a feeling that there are multiple contributing factors, and possibly even several different issues with the same SOD symptom. All of this making the cause (and therefore, the solution) hard to pinpoint. Thanks for trying my solution, and posting your results. The more info posted on here, the better, and maybe somebody will find a solution.

Maybe try SetCPU and set the minimum frequency a little higher than the default. Various theories include the CPU clocking while screen off, GPS, hardware, and other things.
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
Interesting. The problem is often noted to be GPS related. If the GPS uses the GPRS module (not sure if it does or not), than this would make sense.
[G2 and Desire Z Q&A, Help & Troubleshooting] Happy_Jack:
It's definitely 100% related to GPS (on my phone at least). Some time after using GPS the phone usually dies. Google Navigation seems to be the worst app but other apps using GPS also cause it (I suspect people who report a SOD after using the camera may have geo tagging enabled).

Using CM7 RC2, Pershoot's kernel and SetCPU to up the min CPU frequency to 368MHz did result in one reboot where I would normally expect the SOD. Unfortunately the faster min speed doesn't do much for battery life. I couldn't stay with RC2 because of other issues so I've been playing with RC3 and RC4 since that (standard CM kernel only so far) and the SOD problem is as bad as ever (even with SetCPU at 368MHz). I'll post back if I ever find a solution.

Have you had a recurrence since using SetCPU? What screen-off profile are you using?
[G2 and Desire Z Q&A, Help & Troubleshooting] teufeldog:
After having three SODs in less than a day, I switched to pershoot's kernel 2.6.32.39 yesterday, but still got another SOD. I'm about to throw my G2 against the wall.
[G2 and Desire Z Q&A, Help & Troubleshooting] SnowOokami:
Flashing back to stock doesn't resolve the issue?
[G2 and Desire Z Q&A, Help & Troubleshooting] mrbelou:
I had this problem whit vision 1.01&1.02. I solve it with:

advanced kernel

setcpu whit scalling ondemand (245~998Mhz)
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
You are talking about Virtuous, not "vision".

And this is a completely different problem (but understandably confused at times, if the issue is not fully described). This thread is about screen of death (SOD), not the screen wake issue exhibited by the Virtuous advanced kernel. Screen wake is easily solved. SOD has no reliable solution.

Symptom of SOD: phone is completely unresponsive, and no amount of button pushing or opening the keyboard will wake it. The only way to wake the phone is pull the battery and reboot. Happens somewhat randomly, maybe a couple times a day, then maybe not for a couple days. Often related to GPS use.

Virtuous screen wake issue: If you press the power button enough times, or just open the keyboard, the screen turns on, no reboot required. Happens almost every time you try to wake the phone. As you noted, this issue is easily solved by changing CPU stepping.
[G2 and Desire Z Q&A, Help & Troubleshooting] Tangerined:
This has been happening to me too. I've noticed it on the stock rom and Virtuous 1.0.2 (which are the only ones I've used for extend periods of time). I noticed that it doesn't happen when the phone is plugged in. I've never had it die on me when I leave it plugged in overnight, but if I were to leave it unplugged then chances are that it would be frozen in the morning and I'd have to pull the battery. Is it like that for everyone else?
[G2 and Desire Z Q&A, Help & Troubleshooting] LoVeRice:
crap nver knew there are lots of issue flashing desire z, i shoudnt touch my gf's phone lol.

Sent from hTC Ace via XDA App
[G2 and Desire Z Q&A, Help & Troubleshooting] hreiner:
almost same issue

I have almost the same issue (upgraded desire Z to 2.2 by OTA).

Freeze but no need to remove the battery. By pushing power button, the phone reboots.

It has been happening ten times per day since few days.

Anyone knows how to "debug" an eventuel "dump" or "log" where the faulty application/service can be identified ?!

I also think that GPS is involved into that. I often see the gps icon suddenly disappearing as soon as I light on the screen. Obviously, some background application is trying to locate me (with GPS).

Freeze often happens after I was in the underground, in a lift or at my desk (means no gps available and 2G/3G coming down and up every second).

Awaiting imminent upgrade to 2.3 :-)
[G2 and Desire Z Q&A, Help & Troubleshooting] teufeldog:
I was unable to resolve my issue. I returned to stock and unrooted. Had two sleep of death incidents, and a random reboot afterward. T-Mobile is sending me a replacement.
[G2 and Desire Z Q&A, Help & Troubleshooting] andrei.gavrila:
I just wanted to share my experience with this issue and my fix:

I had the same SoDs (sleep of death) after using the GPS. I've noticed there was another guy stating that his phone did the same thing and said something about HTC Sense account. So, my issue was pretty clear: after using the GPS (no matter what application: Google Maps, HTC Navigation - Route66, Sygic Aura, iGo ...) the phone would freeze in stand by (black screen) after few stand by cycles (pressing the button on top of the phone). Notifications were received during this SoD (just the display was dead - I assume the touchscreen, too).

As I said, I was pretty sure it was linked to GPS usage and I've seen that post with HTC Sense account. I remembered the issue came up few weeks after I bought the phone - exactly by the time I reset it to factory defaults after testing all interesting apps. After that reset, I kept it pretty clean and I also set up my HTC Sense account. Obviously, at some point I accepted or enabled that 'HTC Location <-> Google Location' option in Location menu (Settings). The the freezes started to appear. I disabled this option and now, no more SoDs.

The option is: Settings -> Location -> Integrate Google Navigation.

Turn that off and the freeze will disappear. I'm not sure if it only freezes if there's an HTC Sense account linked to the phone, but in my case it fixed the issue.
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
The HTC Location and Sense account features are exclusive to Sense ROMs, aren't they (not on AOSP ROMs)? I had the SOD issue on CM7 as well as stock and Virtuous.

But this is worth trying. Right now, the stock 1.34 ROM and Godspeed kernel seem the only combination that is SOD free for me so far, which is kind of a bummer.
[G2 and Desire Z Q&A, Help & Troubleshooting] Happy_Jack:
This problem also occurs with the stock ROM.

No, you probably shouldn't.
[G2 and Desire Z Q&A, Help & Troubleshooting] hreiner:
Task Killer

I removed Advanced Task Killer 5 days ago

no more freezes !!!

HTC Desire Z
[G2 and Desire Z Q&A, Help & Troubleshooting] redpoint73:
Never ever used that useless app, and never will. But one more reason to give to people not to use task killers. Freezing the phone like this is a pretty serious reason, if it fact its related.

Only app that seemed to be linked to this issue for me was CPU Tuner.
[G2 and Desire Z Q&A, Help & Troubleshooting] meel00:
anyone with a solution yet?

i got my phone back today and they changed the display they say, although my screenprotector was still on :confused:
[G2 and Desire Z Q&A, Help & Troubleshooting] wngmv:
I flashed that solution to no GPS fix again... And now no SOD's
[G2 and Desire Z Q&A, Help & Troubleshooting] dualdot:
I sent in Bell DZ phone for the SOD issue and I got a loaner DZ. In doing so, they left me with my battery, my simcard and my sdcard. Lo-and-Behold! I got the SOD on the loaner yesterday!

Could this issue be battery related and not phone related?
[G2 and Desire Z Q&A, Help & Troubleshooting] awesomoman:
I used to get this problem once or twice a week, and then one day i decided to enable street level gps so that lookout and htc sense could locate my phone better, and then this problem just stopped happening, it was wierd
[G2 and Desire Z Q&A, Help & Troubleshooting] JayeL1971:
I have a Desire Z also and experienced 4 of these SOD's over a 4 week period and then suddenly my phone stopped altogether, taking the battery out etc. would not help.

I took it back to Vodafone who replaced it with a new phone, 24 hours later the new phone has done exactly the same thing, SOD and no amount of battery pulling will allow me to start the phone up again. Interestingly the last thing I did last night before it died was to take a few photographs & I know I have geo-tagging turned on.

Just strange that I can't get it to power on at all no matter what I do :mad:
[G2 and Desire Z Q&A, Help & Troubleshooting] dualdot:
I got my phone back from the repair shop, they said they repaired it and I just got the SOD.
[G2 and Desire Z Q&A, Help & Troubleshooting] Grrruk:
This problem happens with my Desire Z for some months in every ROM, from stock to MIUI. It just happens every two or three weeks and I still can't do final move from my old Treo 650 to DZ, because I can't trust it to wake me every morning without faults.
[G2 and Desire Z Q&A, Help & Troubleshooting] SteRo:
I have a stock DZ, no mods, no flashes, on 2.3.3. Happens all the time, every 1-2 days, did it also on 2.2.4. Other forums suggested WiFi might be involved, but turning that off didn't help for me. I have now disabled GPS and will update you all on how that works for me.

My wife just bought a Samsung Ace on 2.2.1. She has the exact same problem...
[G2 and Desire Z Q&A, Help & Troubleshooting] DLH007:
Hello,

i have the same issue with my Desire Z. Many people say its GPS related, i think so, too.

I never hat issues with GPS while navigate. But because the issue is probably caused bei GPS, i have a idea.

I use the wipe efs-data using for GPS from here: http://xdaforums.com/show....php?t=1028405

I never had freezes since this. Maybe it helps everyone. Please try and give feedback. Thanks.
[G2 and Desire Z Q&A, Help & Troubleshooting] TKCable:
Hereby the link fix: http://xdaforums.com/showthread.php?t=1028405

I will try it out, thanks