[Q] Brightness control not working - Nexus One Q&A, Help & Troubleshooting

I've tried searching other threads/posts but I don't see any solutions at all. I want to first rule out the problem being with the software before I send my Nexus One to a mobile phone technician for hardware repair.
Here's the situation. I got my Nexus One used, at very cheap price but with slight defect that the seller kindly informed me about. The brightness control is not working. He said that it started happening after installing CyanogenMod7 from stock rom.
I still purchased it from him and now it's my problem. I tried looking for solutions. Here's what I did so far:
reset the phone, including formatting the sdcard
installing 3rd party brightness controllers
reinstalling CyanogenMod7 and even used CM6, I've also used nightly and RC CM7
trying other roms (those that do not require modifying hboot [blackrose])
Having said the last item, that is something I have yet to try and really giving it a good thought before finally trying because of some cautions regarding Nexus One having SLCD as indicated by MICROP 0c15.
One thing to consider as well, whenever I run the stock clock app and press the brightness icon, the backlight does get dim so I'm thinking that the brightness can still be controlled.
Any ideas, guys?
Btw, as you can see, this is my first post. Apparently, I cannot find the solution myself so I had to ask.
Thank you in advance.

I have the same issue on both stock rom and the great CM7, Im hoping there is a fix for this.

It seems that only very few experienced this problem and the fact that there aren't any helpful reply means that there is no solution for this issue yet.
I really don't want to believe that this is a hardware failure, though.

dojavanese said:
It seems that only very few experienced this problem and the fact that there aren't any helpful reply means that there is no solution for this issue yet.
I really don't want to believe that this is a hardware failure, though.
Click to expand...
Click to collapse
try screen filter app from play store ..

I've tried using screen filter app and it was able to control the brightness but only to lower it.
Compared to other android phones, the brightness on my nexus one is definitely not on it's highest setting even if the screen filter app says it's on 100%.
It's like it's on 50% brightness.
Could the hboot have something to with this? I'm using 0.35.0017.
Having SLCD on it prevents me from fooling around with hboot flashing.
Any other ideas, guys?

Same problem
i on slim rom 4.3.1 on my LG P990, before the hard reset evrything was fine..n after that brightness controll dailed..
i guess ill have to Hard Reset again
but i dont wnat to..
so i guess lets just stick with it..

Related

[SOLVED!] Accelerometer/G1's Sensor Issues

All right, so a while ago say..few hours or a day ago, I dropped my phone. Nothing seemed wrong, everything was working fine. Until I decided to go play Abduction World Attack. It's a game where you tilt the G1 and the little character moves according to how you tilt it. Surprise Surprise I ran into my problem. The little avatar wouldn't move and it was just stuck there no matter how I turned my phone. I also just noticed that auto-rotate won't work. I believe it's because the accelerometer is broken...Anyone have any advice on how to fix this or calibrate it? I've tried calibrating inside apps that use the accelerometer. I've searched but to no avail. Help will be appreciated Thank-you.
[Edit]: A wipe has fixed this! =)
If your under warranty, you may want to try and get it exchanged. Let T-Mobile/HTC know that it just stopped working.
If you are out of warranty, you can attempt at looking for a solution by taking apart the phone. The official manual is here
The manual has all of the disassemble instructions. Hopefully that will lead you to a solution.
Sounds like it could be a hardware issue but no harm in testing to see if it is a software one. Tried rebooting the mobile? If so see if other programs like Bubble works. If not then a final resort would be a reflash to at least eliminate the software side of things.
If its no go then best to try and get it exchanged...
I've fixed it guys ^^ Seemed like a wipe would do it. I changed to the hero build for a second and then reflash CM after a wipe and accelerometer is fixed. Thanks for the suggestions though! Greatly appreciated
The power of the mighty wipe ^_- Good to hear its been sorted. Since you're the OP too, could you edit the title to SOLVED so people know?
NeoBlade said:
The power of the mighty wipe ^_- Good to hear its been sorted. Since you're the OP too, could you edit the title to SOLVED so people know?
Click to expand...
Click to collapse
Sure. OP and title has been updated!
Sure wish I had your luck. I'm having the same problem and a wipe didn't do me any good.
I have tried several different mods and none of them work.
tested with browser, bubble, Papi game apps, and Accelerometer xyz Values.
I don't have any akm files located in /data/misc
I do have a /system/bin/akmd but my ps output doesn't show it running.
whatchamccallum said:
Sure wish I had your luck. I'm having the same problem and a wipe didn't do me any good.
I have tried several different mods and none of them work.
tested with browser, bubble, Papi game apps, and Accelerometer xyz Values.
I don't have any akm files located in /data/misc
I do have a /system/bin/akmd but my ps output doesn't show it running.
Click to expand...
Click to collapse
Most likely a hardware problem then mate. You could try un-rooting and see if the accelerometer works.
If I install RC29 then the accelerometer works without issue. So that rules out hardware issue.
Here is another thread I found that goes in much more detail about what I am experiencing.
http://forum.xda-developers.com/showthread.php?t=533749
so far there isn't any movement on this thread. I'm surprised that this issue isn't more wide spread.
I just had the accelerometer on my HTC Sapphire go belly up.
Auto-rotate was broken, compass apps wouldn't initialize, tilting maze games would slowly move the ball to the top left side regardless of actual tilting, etc..
Reboot didn't fix it. However I did have a file under /data/misc/akmd_set.txt and most of the values in it were set to 0.
I renamed that file to akmd_set.txt, then killed akmd, per instructions in a neighboring thread.
akmd rose from its ashes, a new akmd_set.txt automagically appeared, with lots of different numbers for each value in it. All my accelerometer-depending features were happy again.
so yay, and all that.
As a side-note, I've been playing with some not insignificant magnets on my desk, and I'm wondering if abnormal magnetic fields around my phone might have caused the accelerometer miscalibration?
Good for my G1 too.
Kudos to the OP, this solution worked perfectly on my G1 with the same symptoms. Many Thanks!

Auto Rotation Issue

I'm really sorry if this has been asked already, but I looked and couldn't fine anything.
I just got a used nexus one online, and its working fine except that the auto rotation isn't working. When I tilt the phone nothing happens, sometimes if I turn the screen off and on a couple times the orientation will change, but then I have to do the same thing to get the orientation back to what it was before.
I've had this problem on four different roms, stock 2.1 and 2.2 before I rooted, and then CM5 and CM6 RC1 after. I've tried wiping and reflashing, as well as wiping the rotation settings using Amon_ra's recovery. The only thing that makes me think its a software issue is that the accelerometer seems to work fine in other apps, such as the bubble lever app, and the labyrinth game.
I've looked everywhere and can't find any fix for this issue. I really love this phone otherwise, but rotation is pretty important for me. I'm kind of at a loss at this point, so any help would be very much appreciated. Thanks!
I know it seems silly but is the box checked under settings : display?

Cannot adjust brightness.

Well, I'm kind of sorry that I have to make an appearance due to having issues rather than something else, but I really did not know what else to do.
So I bought my Optimus 2X a couple of weeks ago and used the stock rom for a few days. After that I decided to get something a tad bit better and I switched to the Modaco rom. Shortly after that I started experiencing brightness flickering (as explained here). And just recently the backlight / screen seems to have taken it to the next level by firstly freezing at a certain brightness setting (usually a very low setting) or seemingly completely turn off.
Since this occured I've tried performing a complete reset, I've try the Modaco rom, Mondego and right now I'm using Cyanogen.
This is not a case of the brightness settings disappearing, I have my SIM in and no matter how much I alter the settings, the brightness does not change. At times the brightness does slightly change to a brighter or dimmer level, but the change is minimal and it's always very dark in comparison to the levels I had before I experienced this issue.
I would really appreciate any hints, possible solutions because I'm doubting my ability to return the phone into its original state in order to have it replaced.
Thanks in advance to anyone who takes his time to help me out
How about try go back to stock using NvFlash n after that only try other roms? I often use NvFlash when i encounter problems.
Tried and nothing changed :/
Smartflash
Have you tried flashing the stock rom using smartflash? It will revert your phone to the original state and you can bring the phone to LG service center for repair
Now I do not know which version your phone came with but here is a guide on flashing to stock ICS.
Link to guide Rom 4.0.4 - v30А - available for download!!
Guys, you're reviving a topic from June 2011 here, wtf?

Screen unresponsive

Hi everyone,
I bought a Samsung galaxy s last week from an eBay auction. The phone was described as touch screen lag. I was thinking that flashing a new firmware will solve the problem. I got really cheap though
The touch screen stops suddenly in every 5/6 minutes and I have to lock the screen using power key and unlock again to make it working.
when I got the phone:
Non Samsung battery and chargers were used, I changed and using original ones.
Stock XXJVS firmware in it.
First I flashed stock 2.2.1 froyo and test the screen using *#0*# code. it got pass. But when I start using it, the problem was still there.
Then I flashed stock GB, same story, now slim ics, same thing.
Please someone help me, there is nothing I can do with it now.
I search few threads related to screen problem but couldn't find one with similar problem. So asking here.
mregmi121 said:
Hi everyone,
I bought a Samsung galaxy s last week from an eBay auction. The phone was described as touch screen lag. I was thinking that flashing a new firmware will solve the problem. I got really cheap though
The touch screen stops suddenly in every 5/6 minutes and I have to lock the screen using power key and unlock again to make it working.
when I got the phone:
Non Samsung battery and chargers were used, I changed and using original ones.
Stock XXJVS firmware in it.
First I flashed stock 2.2.1 froyo and test the screen using *#0#* code. it got pass. But when I start using it, the problem was still there.
Then I flashed stock GB, same story, now slim ics, same thing.
Please someone help me, there is nothing I can do with it now.
I search few threads related to screen problem but couldn't find one with similar problem. So asking here.
Click to expand...
Click to collapse
Sounds like a hardware problem to me..but it's really hard to say if it is. But it would definitely seem like it since it isn't ROM related. Maybe a water damage or faulty digitizer?
Sent from my GT-I9000 using Tapatalk 2
This happens to me sometimes very rarely though, it will be weird and hard to touch but speaking to someone with the same phone they said they had this problem to all I do to resolve the problem is lock and unlock the screen, I thought this was normal?
Sent from my GT-I9000 running remICS-UX using XDA premium
It shouldn't be normal. I am using another galaxy s for almost two years. But never had this problem in such extent, little bit lag on touchscreen when on froyo. But never after. Now with slim ics Temple run is more smooth then iphone 4.
Sent from my Galaxy S using xda premium
Kurre said:
Sounds like a hardware problem to me..but it's really hard to say if it is. But it would definitely seem like it since it isn't ROM related. Maybe a water damage or faulty digitizer?
Sent from my GT-I9000 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for reply. When I got it first time, it was really annoying, the problem was so frequent that it was almost unusable. Now in new rom, after unlocking the screen it works little longer then before. Works like a charm when it works. So not sure this is hardware problem.
Sent from my Galaxy S using xda premium
I don't think this is a hardware or problem either, I broke the screen and replaced it and I still have the same thing when though it is very rare, so if it was the screen it should of gone after I installed the new one, btw I installed a whole new pre built front so the bevil and LCD, and my phone has never hib water damaged? Maybe its something to do with the bootloader? As that doesn't change through ROM flashes
Sent from my GT-I9000 running remICS-UX using XDA premium
mregmi121 said:
Please someone help me, there is nothing I can do with it now.
I search few threads related to screen problem but couldn't find one with similar problem. So asking here.
Click to expand...
Click to collapse
try using a LCD modder LCD density modder https://play.google.com/store/apps/details?id=com.birdapi.android.dpi&feature=search_result
@xsenman;
I did that couple of times going through Advance slim setting. That didn't change anything. Now I'll try this as well.
I change touchscreen into chainfire sensitive option in semaphore app. Still lagging.
Tried over clocking to 1200 but it freezes and automatically reboots into recovery mode. I can use only after changing to default
Sent from my GT-I9000 using xda premium
Guys its really annoying now. Its behaving strangely. I played with it few hours and found out that the screen near the home button freezes first. I cant press the dock but still pull the notification bar? then stops working whole screen. I checked the show touches in developers options setting. Sometimes it works randomly actually without touching it , I just place my finger near the screen but didn't touch and on few occasion it works opposite direction, like I scrolled down but it gone up:crying:
Is this the sensor issue? Is there any way to fix? Any idea please?
mregmi121 said:
Guys its really annoying now. Its behaving strangely. I played with it few hours and found out that the screen near the home button freezes first. I cant press the dock but still pull the notification bar? then stops working whole screen. I checked the show touches in developers options setting. Sometimes it works randomly actually without touching it , I just place my finger near the screen but didn't touch and on few occasion it works opposite direction, like I scrolled down but it gone up:crying:
Is this the sensor issue? Is there any way to fix? Any idea please?
Click to expand...
Click to collapse
try this tool to verify where the problem is , if its hardware, you have no choice but to take it to a technician
https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&feature=search_result
and this
https://play.google.com/store/apps/details?id=com.vital.tst.n7000&feature=search_result
https://play.google.com/store/apps/details?id=zausan.zdevicetest&feature=search_result
xsenman said:
try this tool to verify where the problem is , if its hardware, you have no choice but to take it to a technician
https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&feature=search_result
and this
https://play.google.com/store/apps/details?id=com.vital.tst.n7000&feature=search_result
https://play.google.com/store/apps/details?id=zausan.zdevicetest&feature=search_result
Click to expand...
Click to collapse
Screen+digitizer panel can be changed by yourself. For it, you just need couple of tools and little nerves
Instructions can be found from YouTube, this forum and many other places..
Sent from my GT-I9000 using Tapatalk 2
Kurre said:
Screen+digitizer panel can be changed by yourself. For it, you just need couple of tools and little nerves
Instructions can be found from YouTube, this forum and many other places..
Sent from my GT-I9000 using Tapatalk 2
Click to expand...
Click to collapse
I tried all of those apps, nothing wrong. I think I should change the screen and digitizer, I might need to go to the repair center because my hands shake (my usual problem) and hard to fix tiny things. I want to do few experiments before taking it to repair. I already put it in the freezer for two hours it was acting like crazy after.
Suggest me more...
Sent from my GT-I9000 using xda premium
Me too!
and i thought i'm the only one experiencing this kind of problem. it is exactly what i'm having on my sgs. seems to be temporarily fixed by turning the screen off and then on again, but after a while, the screen doesn't respond on the same spot as you're having.
i've managed a low level debug on screen touch response using adb logcat, and my touch doesn't really register any on adb logcat console.
they might be correct on the hardware problem, but when i'm on any gingerbread rom (2.3.6), the problem is gone.
guys, any idea what kind of drivers they're using on gingerbread for our touchscreen?
I have this too on ics, left half of screen stops responding, lock on/off sorts it....until the next time! Bugs the hell out of me!
Me too! on ICS
btw, i'm already on ics team nyx
change
flash CF KERNEL and put ICS CM9
middle screen not responding
- when in stock gb firmware (official from samsung), the touchscreen problem is gone.
- but i want the features of an ics rom, so i flashed one (first was slim ics); the problem appeared first; first guess was the custom rom was still in its early stages.
- flashed back to gb, no touchscreen problem.
- flashed new ics rom from cm9 (nightlies), problem appears again (ugh!).
- flashed backed to updated slim ics since this was the fastest and easiest to install, touchscreen problem still persist.
- found a temporary fix by turning the screen off then on again.
did a adb logcat full trace log of touchscreen input: what i noticed was the whole vertical middle part of the screen is not responding to touch; dragging touch from one side to middle is working just fine, but not starting from the mid vertical part.
the problem may sometimes go away after a while, and sometimes persist even after the temp fix. it's very intermittent indeed.
help please.
psycotrompus said:
- when in stock gb firmware (official from samsung), the touchscreen problem is gone.
- but i want the features of an ics rom, so i flashed one (first was slim ics); the problem appeared first; first guess was the custom rom was still in its early stages.
- flashed back to gb, no touchscreen problem.
- flashed new ics rom from cm9 (nightlies), problem appears again (ugh!).
- flashed backed to updated slim ics since this was the fastest and easiest to install, touchscreen problem still persist.
- found a temporary fix by turning the screen off then on again.
did a adb logcat full trace log of touchscreen input: what i noticed was the whole vertical middle part of the screen is not responding to touch; dragging touch from one side to middle is working just fine, but not starting from the mid vertical part.
the problem may sometimes go away after a while, and sometimes persist even after the temp fix. it's very intermittent indeed.
help please.
Click to expand...
Click to collapse
So your sgs touchscreen working fine on stock gb rom! It might not be a hardware problem then. We have similar problem, only difference is I have problem on GB too. I've even tried stock froyo, same story
Sent from my Nexus S using xda premium
same problem here, left part of the screen would be unresponsive at times
can fix by locking the phone through power button and unlocking it, thats why i think its a software problem.
I dont remember having this problem in GB also.
maybe something is messed up during flash?
I have the same problem with ics and jb roms from the onecosmic ics times and i had a topic http://forum.xda-developers.com/showthread.php?t=1648287
I have written here but no one seems to now what it is, i have been using ics from onecosmics first release and had the problem from that moment on, different kernels, roms etc it is still here i have flashed gb again and problem is gone, flash again with ics the middle part still acts sometimes. ?...
We should request from kernel developers and rom developers to look into it. I have tried almost everything no luck so far

[Q] Looking for a good stable ROM for S3 mini

I have been ROM-hopping for 3-4 months and I have tried many ROMs for my i8190.
I found some I really enjoyed, some did not work well for me.
Without meaning to "compare" the ROMs or find "the best ROM ever" I am just looking for some suggestions on ROMs that I can try.
My requirements are very simple:
-OTG support
-No clock freezing
-No battery drain
What ROMs would you suggest?
Please note, I have no intention of comparing the ROMs with one another, I am just looking for suggesstions in case there is something good that I have not tested yet.
Thanks!
Novafusion CM10.2
sent from Hell with my GT I9100
tobi-19777 said:
Novafusion CM10.2
Click to expand...
Click to collapse
Thank you for your time. This was the ROM I installed last and seems to be a good option.
I have been using it for almost a week, I really like the stability, looks like a solid ROM.
I only have one issue with it (all cyanogenmod ROMs basically).
Even though I have turned the backlight of the hardware buttons off, they keep lighting at random times, I have not found what is causing that or how to fix it, can you suggest something or do I just get used to it?
anpel said:
Thank you for your time. This was the ROM I installed last and seems to be a good option.
I have been using it for almost a week, I really like the stability, looks like a solid ROM.
I only have one issue with it (all cyanogenmod ROMs basically).
Even though I have turned the backlight of the hardware buttons off, they keep lighting at random times, I have not found what is causing that or how to fix it, can you suggest something or do I just get used to it?
Click to expand...
Click to collapse
Download this app, then open it, uncheck "activate bln" then go to system settings-buttons-backlight & uncheck illuminate buttons
mauam said:
Download this app, then open it, uncheck "activate bln" then go to system settings-buttons-backlight & uncheck illuminate buttons
Click to expand...
Click to collapse
I managed to break my phone's screen so I haven't been using it for the past couple of months but I'm back here to say this solution worked 100% for me, just in case anyone is reading. Thank you!
P.S. Sorry I had to remove the url to the app, but I'm a new user and I am not allowed to post external links, obviously even when quoting more experienced users.

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