[Q] Miscalibrated accelerometer. Anything I can do? - General Questions and Answers

I have a Verizon Samsung Galaxy Nexus LTE, rooted running Android 4.0.2. I recently noticed (while playing Doodle Jump) that my accelerometer was slightly off. If I held the phone straight vertical (or laid it flat) the doodle would move to the left. In order to play properly I would have to lean the phone to the right to compensate. I tested this again with two different gyroscope apps. It's off by about 4 degrees (not terrible but enough to be obnoxious). I also used the in-app calibration option which fixed the problem, but only for that app. I re-calibrated my compass to no effect and did a factory reset to no effect. I don't know is this problem existed before I rooted as rooting was the first thing I did.
I'm unsure whether this is worth sending the phone back over (I can re-lock my boot loader if needed). Or if I did, would they even take it back for such a small issue? I've had the phone for about a month now. I would much prefer some sort of software fix. I understand that certain phones had global calibration options in the past. I have root access and am open to some hacking.
Any help is appreciated.

With all these smart people around here, nobody has any suggestions?

The Galaxy Nexus forum is this way:
http://forum.xda-developers.com/forumdisplay.php?f=1336
Yours wouldn't be the first with accelerometer issues.

Related

Firmware update confused buttons and screen rotation

Hello,
I recently moved to Argentina from the US and took my Samsung Galaxy S with me. It won't work down here until I root it and free up the sim card.
I rooted and flashed the ICS Passion V13.1 Ice Cream Sandwich rom. Looks and works very well.
However a couple of interesting things happened, and after 4 hours of scouring the internet I can't find a solution.
First off, the volume buttons (hard buttons) are confused. Up thinks it's down, down thinks it's up. Second off, the home and settings soft buttons are equally confused. Inconvenient at the worst but I figure there should be some fairly simple way to fix this.
The one thing that I'm really not cool with is that screen orientation is 90 degrees clockwise to the way I'm holding the phone. I.E. if I'm holding it standard (soft keys at the bottom, just like any other phone ever), then the up-down axis of the display shifts horzontal with the "top" of the screen being on the right side of the phone. If you rotate the phone, the screen runs away from you in the same direction. Quite strange.
There are no options to calibrate the accelerometers (which after using zdevicetest seem to actually be working okay, though I'm not sure if they're indicating the correct direction), and I can't find any ways to mess with the Gyro settings, which seems like those would be the two relative ways to fix this.
Are there any ideas here? I need a newer version so I can run dev tests (gotta be able to use the Google GCM system). I could always flash to an older ROM but I'd really like to avoid it. Uh. This new one is pretty slick.
For the record I'm comfortable and willing to get under the hood on this, but I'd like to avoid installing apps that are permanent band-aid fixes.
Thanks for the time, folks.
dudewad said:
Hello,
I recently moved to Argentina from the US and took my Samsung Galaxy S with me. It won't work down here until I root it and free up the sim card.
I rooted and flashed the ICS Passion V13.1 Ice Cream Sandwich rom. Looks and works very well.
However a couple of interesting things happened, and after 4 hours of scouring the internet I can't find a solution.
Click to expand...
Click to collapse
Its i9003 forum. I think ur phone is i9000. You have to search in i9000 forum for ur solution.

Compass broke

Just noticed it wasn't working. I've flashed back to rooted stock and tried several apps with nothing working. I can't say if it ever worked as I never use it. Has anyone tested this to see what could be the issue? Does it work on a clean phone, unrooted stock original? Are we somehow messing the magnetometer up with flashing?
Bump. Anyone tried their compass even?
Wouldnt rely on it. Ive had the phone sitting on a table with the compass pointing North, closed the app and reopened and it was way off. Closed and opened again and it was pointing a different direction.
So your compass is broke as well. There are phones where this works. It's nice for apps like google skymaps. Question is does it come broke or does rooting/unlocking/flashing somehow mess it up.
I have yet to see a phone where the compass works consistently. Due to the fact that some countries restrict the use of very sensitive magnetometers I doubt we will ever have very reliable ones in cell phones.
Perhaps but this is an advertised feature of a US based phone. We have every right to expect it to function. The question is does it function at all even on new in bow devices. Some youtube videos show it working bit it's not clear if those are i9300s or i535s. It could also just be an unreliable device hitting on some and being broke on others.
So using the sensor test (*#0*#) I was able to see my y axis sensor is very low. It goes above the threshold when the top of the phone is oriented north. The device must be calibrated to start and periodically. It also loses direction if turned up as you would for google skymaps. This makes the app useless. Other devices do not have this problem. I believe I have a defective sensor but also that samsung drivers are shotty. Can anyone else look at their readings and report?
This is probably related to the crap GPS as well. I believe the issue can be fixed in the kernel too bad we don't have many devs that work on the kernels.
Where in the hell is the compass?
Android 4 Life
The compass is a built in piece of hardware that you need an app to see. Search for compass in the play store. Any one should work.
On a sidenote, a Samsung rep checked two of their devices and found it working. One was a vzw on 4.04 and the other was on 4.1. I tried to get him to send me the 4.1 rom to test on but he couldn't.
This may be a sporadic problem inherent in only some devices.
Had vzw ship me a new one but before I returned the old one I flashed it back via odin and low and behold, the compass came back. Even on a stock rom that was slightly modified it wasn't happening. After odin, I was able to root, unlock and flash cwm and keep it running. Once I flashed any rom, the compass was dead but I could flash back to a backup of the stock unmodified rom and it worked. So it's a software issue and I'm going to return the warranty replacement.

[Q] Screen flickering/shifting/cycling up

For 6 months, my Nexus 5 have been the best thing that happened to my life. But after the 4.4.3 update around Jun13, this display issue appears. Display keeps shifting upward in a continuous manner. For example, the keyboard is now in the middle, and the top part is below, it keeps flickering and moving. So I thought it may be a software bug since it coincided with the update (and no, I did not drop it). I tried all (factory reset, turn auto settings off, Developer options settings) to no avail. I contacted Google support and after a few emails, they told me to contact Japan support team. I don't know anyone from Japan. (Actually I do, but when he called them, the Google person couldn't speak English and my friend can't speak sufficient Japanese). (Note: A friend of another friend bought this phone from Google Store Japan)
So I thought, wth, let's open the back, maybe there're loose connections, like the battery or something. But now the adhesive is tampered with, a small dent in the case (due to the very strong adhesive) and the back does not pop completely back. One corner is a bit loose, so there's no fooling them that I have opened it.
I updated to 4.4.4 and new issue, the display is gone, just backlight. I managed to fix this eventually. Now I'm back to 4.4.2, and the display is still shifting. During bootup, Google logo is stable, but the next animation is shifting. Bootloader is stable, but sometimes it moves up a grid after I press a button. So I assume that the display moves when the system processes something.
So my conclusion now is that this is probably hardware/GPU issue. Or is it? My warranty is as good as void already since I can't communicate with Japanese, and since I opened the back, it really is void already. I have 2 immediate plans of attack: 1) flash a custom rom, if software issue; 2) buy a triwing screwdriver to check the back, if loose hardware.
Any thoughts?
You have answered your questions already m8.. If I were you, I would find someone who can speak Japanese and tell them to contact Google support and act as a interpreter.. I'm sure you will find someone in your workplace.
Since you've opened up the back and damaged the device to a point where it doesn't pop back, the warranty is gone most probably. But I would still contact Google first and then go-ahead with tampering the hardware.
- Sent from an IceCold Hammerhead!
tsuwariwarirap said:
For 6 months, my Nexus 5 have been the best thing that happened to my life. But after the 4.4.3 update around Jun13, this display issue appears. Display keeps shifting upward in a continuous manner. For example, the keyboard is now in the middle, and the top part is below, it keeps flickering and moving. So I thought it may be a software bug since it coincided with the update (and no, I did not drop it). I tried all (factory reset, turn auto settings off, Developer options settings) to no avail. I contacted Google support and after a few emails, they told me to contact Japan support team. I don't know anyone from Japan. (Actually I do, but when he called them, the Google person couldn't speak English and my friend can't speak sufficient Japanese). (Note: A friend of another friend bought this phone from Google Store Japan)
So I thought, wth, let's open the back, maybe there're loose connections, like the battery or something. But now the adhesive is tampered with, a small dent in the case (due to the very strong adhesive) and the back does not pop completely back. One corner is a bit loose, so there's no fooling them that I have opened it.
I updated to 4.4.4 and new issue, the display is gone, just backlight. I managed to fix this eventually. Now I'm back to 4.4.2, and the display is still shifting. During bootup, Google logo is stable, but the next animation is shifting. Bootloader is stable, but sometimes it moves up a grid after I press a button. So I assume that the display moves when the system processes something.
So my conclusion now is that this is probably hardware/GPU issue. Or is it? My warranty is as good as void already since I can't communicate with Japanese, and since I opened the back, it really is void already. I have 2 immediate plans of attack: 1) flash a custom rom, if software issue; 2) buy a triwing screwdriver to check the back, if loose hardware.
Any thoughts?
Click to expand...
Click to collapse
It is incredible, i have exactly the same problem and i did the same as tsuwariwarirap did. So if it is the same issue could be a kind of software problem? Or maybe all the nexus5 hardware will have issues with 4.4.3 or 4.4.4 ?
shevaperu said:
It is incredible, i have exactly the same problem and i did the same as tsuwariwarirap did. So if it is the same issue could be a kind of software problem? Or maybe all the nexus5 hardware will have issues with 4.4.3 or 4.4.4 ?
Click to expand...
Click to collapse
It's a hardware issue. A software update can't cause the flex cable or the display to go bad like that. If you have flashed back to fully stock and still have these issues, your only option is to replace the damaged parts.
Hi, do you mean this kind of issue
How did you solve this?!

[Q] Touchscreen input lag?

So, I got a consumer cellular moto G at target - paid for the SIM unlock and also flashed the US retail firmware on it. Everything is good, but the touchscreen comes off as a bit 'laggy' and/or doesn't respond the first time.
It seems, especially after turning it on, the first push doesn't always register. The best way to describe it from past Android devices is the CPU is still running underclocked and hasn't come up to full speed.
I've used a couple touchscreen apps from the play store and the phone registers across the screen and up to the 5 different touch points - all accurate and fine.
So, does this phone have some touch input issue or could it be a more hardware related issue?
Edit: I had a bit more downtime at work to play with it and it seems to not be as nearly sensitive as I'm used to. Is this typical? I went back and was more ginger with the touchscreen test apps and I could clearly put my finger on the screen (lightly, but it was touching) and nothing would register. I know the phone is not top tier parts, but is this normal?

Can't access recovery mode / faulty touchscreen?

Hi Everyone. I've read a lot of posts here and elsewhere on this issue, but have been unable to solve it, and Sony phone support suggested I post a question. So here goes...
I have a Z3 (D6653) on Android 6.0.1. A month out of contract with my telcom (Telstra), I started having trouble pulling down the notification drawer. Originally it was just slow, then only possible from the home screen and within a day altogether impossible.
I reset the device to factory, but this didn't help.
I used the native diagnostic tool to test the touchscreen and it showed a narrow, very uniform unresponsive band at the top of the screen. About 2-3mm. The uniformity of the band, which suggested to me (right or wrong) that it may be a software issue, not a hardware issue.
So I tried to flash a custom ROM, but although I was able to unlock the bootloader, I was unable to access recovery mode. (I've flashed custom ROMs before, but it's not something I've ever found trouble-free.) After about 8 hours trying all the usual methods, and all the unusual ones, I gave up and started looking at recovery apps.
But recovery apps all require root, so I decided to pursue that course. But without recovery, I couldn't root the device the normal way, so I decided to try Kingroot. After a few false starts, it eventually said it had successfully rooted the device, and Root Checker said it had too. But I was still unable to install a custom recovery with an app. Which left me with nowhere to go.
And now Root Checker is saying the device is NOT properly rooted, Kingroot basically spins, and I haven't been able to unroot with SU or anything else I've tried (not many attempts).
And now at least one app (Pokemon Go) won't work because it thinks the device is rooted.
So I'm now using a floating app to pull down the notification drawer, and I've got all the apps that most often give me notifications sitting directly on my home screen, rather than in folders. I know none of this is the end of the world, but it interrupts my workflow and, thus, my overall productivity. Also plays havoc with my OCD!
Sony support said it's no longer covered by warranty because I rooted it, and although they can probably fix it, it'll take up to a month, and will cost somewhere between $50-$250. I could buy a replacement phone for not much more!
Any ideas on where to go from here? Should I just get a local mobile repair shop to replace the touchscreen? Or is my suspicion right and it's more likely to be the OS? And if the OS, how do I get to recovery?
Thanks heaps, in advance.
Cheers
Glenn
divinewrite said:
I used the native diagnostic tool to test the touchscreen and it showed a narrow, very uniform unresponsive band at the top of the screen. About 2-3mm. The uniformity of the band, which suggested to me (right or wrong) that it may be a software issue, not a hardware issue.
Click to expand...
Click to collapse
I just about guarantee you that it's a hardware problem, this has happened to me twice on 2 different display panels, through some research this problem happens only on sony phones.
Normally cracking the screen will trigger this problem (Even the smallest of cracks will) but in some cases it will do it on it's own. I think (correct me if I am wrong) sony purposely made this happen possibly to make money on the unfortunate ones who have cracked the screen and caused the digitiser to become slightly unresponsive or not work at all (Thus needed repair and most will go to sony to do so).
I ended up blowing up the phone (Not kidding, I put it in a old microwave and the battery exploded) because it was a pain to run AOSP/CM roms on there and it was gonna cost me quite a bit to fix again so I said fk it and happily destroyed it with a couple of mates (I don't suggest doing this I was just sharing my experience/feelings with this problem {and more}).
I'd suggest selling it (If possible) and getting a new phone, even a phone with the same specs will be better due to sony being... well... sony.
I'm quite happy with my new Moto G4 Plus that runs considerably better than my old Z3 (And the battery lasts longer too ).

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