Related
First of all, I would like to make clear I'm not slating VJ at all in any way, I think the effort he puts into developing all the programs that he does is fantastic.
However, I installed VJ Candella on my universal about a week ago, and since having had the flash on for a total of about 30minutes or perhaps an hour, my flash has gone from white to green to dim blue and now nothing.
I had VJ Candella Lite assigned to the 'backlight' button, so it is also possible that the button got pressed in my pocket and the flash was actually on for many hours rather than the 30min or so I consciously had it on for.
Either way I would highly recommend against using VJ Candella. Unlike many other phones, the flash is NOT a standard LED, and I think it burns out with too much use.
VJ already makes clear on his site that he cannot guarantee the effects using the program might have in the long run, but I'm sure he doesn't realise that it could do this.
It is probably the case that you can use the flash for say 30seconds a day, but I would be very wary how much.
Cheers,
Dave
Dave, reading through the VJCandela thread, you can see several people have reported the same problem (and results ) - I've stated that I wouldn't use it for more then a short time, bursts of a few seconds. Earlier last week I released a version in that thread that limits the bursts to 15 seconds (I think).
It's good advice not to sit on the flash and keep it burning, and it definitely seems to be a bit of a crap led, given that it has the ability to burn itself out. But I apologise for your experience, and urge everyone to use caution in the use of the app. But remember, it's a hardware problem, and how the hardware is used....
V
Dave, do know that you can disable all the buttons apart from the power button when the Universal is off? I think that should solve the problem for those who are still using the program.
@Vijay - I don't blame you at all - in fact I still thank you for writing the software, because it was a very good idea, except for the hardware is crap!
@richardlai - I have all the buttons disabled except power anyay, but somehow the power button seems to get pressed many times while in my pocket, and hence after that all that is required is one tap of the backlight key (shouldn't have set the app to run from there...). Thanks anyway!
@Vijay - I don't blame you at all - in fact I still thank you for writing the software, because it was a very good idea, except for the hardware is crap!
@richardlai - I have all the buttons disabled except power anyay, but somehow the power button seems to get pressed many times while in my pocket, and hence after that all that is required is one tap of the backlight key (shouldn't have set the app to run from there...). Thanks anyway!
davenash said:
@richardlai - I have all the buttons disabled except power anyay, but somehow the power button seems to get pressed many times while in my pocket, and hence after that all that is required is one tap of the backlight key (shouldn't have set the app to run from there...). Thanks anyway!
Click to expand...
Click to collapse
Right... You may want to consider getting a leather case with a belt clip, but just don't run around too fast with it; I did that and it dropped...
In my case, I assigned Vijay Candelite as one of the 7 apps in the "Start Menu". Thus, the only way to light it up is through the "Start Menu". To turn it OFF, I just press any button. I never had any problem with Vijay's app. Thanks!
richardlai said:
Dave, do know that you can disable all the buttons apart from the power button when the Universal is off? I think that should solve the problem for those who are still using the program.
Click to expand...
Click to collapse
Sorry for the thread hijacking, but how can you do that?
mdaexecfan said:
richardlai said:
Dave, do know that you can disable all the buttons apart from the power button when the Universal is off? I think that should solve the problem for those who are still using the program.
Click to expand...
Click to collapse
Sorry for the thread hijacking, but how can you do that?
Click to expand...
Click to collapse
Start -> Settings -> Buttons -> "Lock" tab
I've just gotten my T-Mobile MDA Pro, and i am very happy with it
however, a few things
1. How do i hard reset? being my first WM5 pda, i cant find how to hard reset (total factory reset) the thing...
2. How do i get out of ozVGA?!?? in the last 5 mins i just set it to true vga... how do i get back to normal? soft reset wont work, just keeps rebooting to true VGA... kinda panicking at the moment...
Help would be much appreciated on this one...
<edit>
omg... breath... i have sorted the VGA problem... man i am sweating buckets now
See, ive wanted a Universal ever since the rumours started nearly 2 years ago... and now i have one i nearly brick it in the same day... and the problem in the end was me being a dumbass and not reading the readme
</edit>
Google!
If you must know, press and hold the backlight (lightbulb) button and use the stylus to press the reset button. Hold the backlight until you get a menu with three options. Use the dpad up button to move from item to item, use the down button to select yes or no. Set Clean Registry and Format Storage to YES and press the middle dpad button to reboot. This also works for the QTEK 9100
Click to expand...
Click to collapse
http://blog.ryjones.org/CommentView,guid,8ff5b952-179c-49dc-b9c1-f38f2ca384fd.aspx
V
PS please use helpful topic titles, and you'll get help much faster.
Hi, thanks for the info.
sorry about the title, I was kinda preoccupied with my malfunctioning PDA... and I guess I should've used the search, too...
But you got VGA working right?
I wasn't sure if you needed any further help on that...
V
I know this *should* be not possible. I was clicking the screen and buttons really quickly and at the bottom, one of those Samsung Style Notifications came up and it said screenshot taken. It created a directory called "ScreenCapture" and created a png "SC20110128-133122.png".
I know this should not have been possible, as no one has done this before but somehow I got it.
I know for a fact, I am not root. I am running the stock version 2.2.
Kernel 2.6.32.9
Build # FROYO.UVKA6
I don't know how to prove that it was taken from the phone, if anyone has an idea I can try it. It happened by pressing the options and/or home softkeys. I have not been able to reproduce it.
I have attached the screenshot it took.
No offense, but this gets posted every week. Many have replicated this, but are NOT able to figure out how to duplicate it over and over... most people who have done it, can only do it once and usually don't recall what they did.
You can use the SDK to take screenshots....
I would LOVE if someone could actually figure out HOW to do this consistently.
I understand your concern and I know that it is possible with the SDK. I'm also sure that a lot of people would troll and say that it is possible.
I was thinking it could be a 2.2 and/or Samsung addon feature.
I mean thats cool, if you guys don't believe me, I know how the internet is. Pics or didn't happen right? lol. I've mostly lurked and haven't contributed much. Just though I would share.
dude, I was saying YES, I know it is a possibility, so does everyone else who posts a thread like this.... I was not trying to criticize. It IS a feature of Froyo... what I was saying is NOBODY knows how to use it yet consistently.
re-read my first post, guess I can see why you thought I was coming down harder than I meant.
My wife did this by accident yesterday. I had been looking for ages to find a non root way to do a screen shot. After some investigation we were able to replicate it.
Hold the back button down and hit the home button.
djatoon said:
My wife did this by accident yesterday. I had been looking for ages to find a non root way to do a screen shot. After some investigation we were able to replicate it.
Hold the back button down and hit the home button.
Click to expand...
Click to collapse
I tried to reproduce this as was not able. Based on haptic feedback pushing the back and them home does nothing and long pressing back disables any other press as long as it is still held down. Also pressing home then hitting either back or menu before the long press second tick is the same as a long press on home.
Another route for screen shots is through the ADB connection. I know the SDK was mentioned, but you can also use the screen cast feature of Droid Explorer to capture screens directly to your PC.
djatoon said:
My wife did this by accident yesterday. I had been looking for ages to find a non root way to do a screen shot. After some investigation we were able to replicate it.
Hold the back button down and hit the home button.
Click to expand...
Click to collapse
Nope .
Dunno what to say, it worked on her phone and I tried it on mine too. Holding the back button down and hitting the home key took a screen shot. I had to try it a couple times to get the timing right when i first did it. But I've been able to use that method on 2 different phones now.
I just had a random screenshot happen on my phone too as I was putting the phone down on the desk. I know on the galaxy tab, holding back and power button at the same time will give you a screen cap, but it doesn't do anything on my vibrant.
I was running an older Paramid version of dunphp's ROM, and right before swtching the ROM my touch screen start to not function. I could not pull the ring up to unlock the screen. I rebooted multiple times. Cleared Dalvik and fixed permissions. It finally worked after attemptiing to unlock it for what seem like abother 500 times.
I was going to change over to his latest Deisre HD ROM anyway. So I did a Task 29, and cleaned and reinstalled everything from scratch. It worked perfectly for about 5 days. Now I am getting the same issue with my touch screen. It just seems to go out. Is this typically what happens when it's about to die?
Never mind. I Task29, and flashed a Windows Mobile ROM just to see, and yeah...it's dead...
cmajewsk said:
Never mind. I Task29, and flashed a Windows Mobile ROM just to see, and yeah...it's dead...
Click to expand...
Click to collapse
You have semi-dead digitizer. But it is nothing you can't temporarily fix every time it happens. Just push red (end call) button really hard for a while and it will get fixed for a while. I recommend you using button savior and lock screen with it and unlock with any other button than red one, it should be permanently fixed then. Please hit the thanks button if I helped you.
lolkoz said:
You have semi-dead digitizer. But it is nothing you can't temporarily fix every time it happens. Just push red (end call) button really hard for a while and it will get fixed for a while. I recommend you using button savior and lock screen with it and unlock with any other button than red one, it should be permanently fixed then. Please hit the thanks button if I helped you.
Click to expand...
Click to collapse
I hit the thanks button as you gave me hope. I am currently using my old TouchPro 2 with an old NRG Titanium Rom on it for the time being, but will try this today. I’ll install “button savior”, but what am I supposed to do with the app? What settings do I run? I think you are totally right about this, as I noticed when I was unlocking my phone, using the green call button worked most often, but now that’s not even working.
cmajewsk said:
I hit the thanks button as you gave me hope. I am currently using my old TouchPro 2 with an old NRG Titanium Rom on it for the time being, but will try this today. I’ll install “button savior”, but what am I supposed to do with the app? What settings do I run? I think you are totally right about this, as I noticed when I was unlocking my phone, using the green call button worked most often, but now that’s not even working.
Click to expand...
Click to collapse
Yes, I have exactly the same problem as you have. My phone was working flawlessly for like a year and a half, but last week all of a sudden the touchscreen sometimes didn't work and sometimes it did. So I tried literally everything, I was fixing my permisions all the time, wiping dalvik, task29, remaking parrtitions, even bought a new sd card. But few days ago I found a solution, by pushing red button really hard (because the digitizer is right behind it) and not using it after. The Button Savior app is a simple app that makes a very little transparent icon on your screen and when you tap it, the menu of buttons will come up (with the same buttons as your hard buttons on your device) so every time you will want to lock the device you will do it on your screen, and won't have to push the hard button and come through all the hassle of pushing the digitizer. I really hope I helped you, as this very same problem was driving my crazy for the past few days.
lolkoz said:
Yes, I have exactly the same problem as you have. My phone was working flawlessly for like a year and a half, but last week all of a sudden the touchscreen sometimes didn't work and sometimes it did. So I tried literally everything, I was fixing my permisions all the time, wiping dalvik, task29, remaking parrtitions, even bought a new sd card. But few days ago I found a solution, by pushing red button really hard (because the digitizer is right behind it) and not using it after. The Button Savior app is a simple app that makes a very little transparent icon on your screen and when you tap it, the menu of buttons will come up (with the same buttons as your hard buttons on your device) so every time you will want to lock the device you will do it on your screen, and won't have to push the hard button and come through all the hassle of pushing the digitizer. I really hope I helped you, as this very same problem was driving my crazy for the past few days.
Click to expand...
Click to collapse
Nah, that didn't work...my digitizer must be completely dead. I held the Red Button for a while and holding it down really hard...made no difference..oh well guess a dumb phone until the Prime comes out....thanks anyway.
cmajewsk said:
Nah, that didn't work...my digitizer must be completely dead. I held the Red Button for a while and holding it down really hard...made no difference..oh well guess a dumb phone until the Prime comes out....thanks anyway.
Click to expand...
Click to collapse
Aww, that's a shame. I really tought it would help. It doesn't work every time, maybe you can try it few more times. If it's not even then going to work, then maybe you should get your digitizer replaced.
Cheers
lolkoz said:
Aww, that's a shame. I really tought it would help. It doesn't work every time, maybe you can try it few more times. If it's not even then going to work, then maybe you should get your digitizer replaced.
Cheers
Click to expand...
Click to collapse
How long do you hold the red button? Also, I am pushing down really hard. I didn't know you could get the digitizer replaced...I wonder who would do that (no way would I send it to HTC and wait a month), and how much that costs...?
HTC sends phones back crazy quick. Atleast that's how it was for me. They actually sent it back the day they got it from what I remember. It did take a while though for the phone to arrive to HTC (this depend who and from where you send it though) If your phone still has warranty I seriously recommended you send it yo HTC. Just remember to flash it 100% stock before sending it.
Sent from my HD2 using XDA App
Well believe it or not, after pressing the Red phone off button for an eternity and applying a ton of pressure, it's working. I am sure it won't be for long. I have a shortcut to lock the phone on the screen. So basically your saying I should stay away from hitting the Red phone off button, or else that will kill it again? What about the other hard buttons?
I am in the UAE at present, so it might be better for me to just order a digitizer and do the repair myself. I see there are a lot of YouTube videos on the subject.
Thanks everyone for your help!
My power button has been malfunctioning for about 2 months now. That isn't to say it is 100% dead, but at times it'll work if I smack the button about a few times, and sometimes it will be completely unresponsive. I have read up on the subject and found a thread with a response from a guy claiming to be an engineer who said the micro switches they use in these phones are somewhat weak and only work for a limited number of presses. Recently, I changed roms, and to my surprise the power button worked great for a short period of time. Since then, I've found that when my power button starts acting up, wiping the dalvik cache put it back to normal. This lead me to thinking, and I've come to believe it could very well be a hardware problem that is meant to happen. I am by no means a coder/programmer but I have studied it enough to know that certain code can be written for a device that sets a "timer" for a piece of hardware to die out or malfunction. If that's the case with this, then it makes sense somewhat that wiping the dalvik cache resets this timer for a short time. Anyone have any thoughts? Am I crazy tinfoil hat wearer or does this make some sense?
knarfrabot said:
My power button has been malfunctioning for about 2 months now. That isn't to say it is 100% dead, but at times it'll work if I smack the button about a few times, and sometimes it will be completely unresponsive. I have read up on the subject and found a thread with a response from a guy claiming to be an engineer who said the micro switches they use in these phones are somewhat weak and only work for a limited number of presses. Recently, I changed roms, and to my surprise the power button worked great for a short period of time. Since then, I've found that when my power button starts acting up, wiping the dalvik cache put it back to normal. This lead me to thinking, and I've come to believe it could very well be a hardware problem that is meant to happen. I am by no means a coder/programmer but I have studied it enough to know that certain code can be written for a device that sets a "timer" for a piece of hardware to die out or malfunction. If that's the case with this, then it makes sense somewhat that wiping the dalvik cache resets this timer for a short time. Anyone have any thoughts? Am I crazy tinfoil hat wearer or does this make some sense?
Click to expand...
Click to collapse
I AGREE! I thought it broke a while ago but I did a complete wipe and put a brand new rom on it. Heck I almost sent it to Sammy but for some reason it stared working. I dont think its the dalvik cache though. I have a feeling its ClockworkMod Recovery because sometimes it says a key was disabled and I had problems after that. I couldnt lock my phone.
knarfrabot said:
My power button has been malfunctioning for about 2 monthsnow. That isn't to say it is 100% dead, but at times it'll work if I smack the button about a few times, and sometimes it will be completely unresponsive. I have read up on the subject and found a thread with a response from a guy claiming to be an engineer who said the micro switches they use in these phones are somewhat weak and only work for a limited number of presses. Recently, I changed roms, and to my surprise the power button worked great for a short period of time. Since then, I've found that when my power button starts acting up, wiping the dalvik cache put it back to normal. This lead me to thinking, and I've come to believe it could very well be a hardware problem that is meant to happen. I am by no means a coder/programmer but I have studied it enough to know that certain code can be written for a device that sets a "timer" for a piece of hardware to die out or malfunction. If that's the case with this, then it makes sense somewhat that wiping the dalvik cache resets this timer for a short time. Anyone have any thoughts? Am I crazy tinfoil hat wearer or does this make some sense?
Click to expand...
Click to collapse
well, you solved your own theory in your statement. since when does smacking your phone equate to a software issue? my power button went in august, mostly. it started showing the behavior that you described about 4-6 weeks beforehand. i say mostly, because the physical button doesnt work anymore(rarely a response from it). but ive figured out how to work it to my advantage/needs. i can wake my phone by shaking it now, and put the screen to sleep. also can be done with a light smack in the right place on the back of the phone. but to be practicle, i remapped my search button to use as a power button and wake my phone with the volume button. really, the only hard part is navigating in the bootloader menu since the volume buttons wont work there with the power button broken. so ive learned to work it by lightly, very lightly, tapping on a certain place on the back of the phone near the power button. this "loosens" the volume buttons and lets me navigate the menu. then i tap the phone again to make a selection. this in no way indicates a software issue/conspiracy to me. when it just started displaying this behavior, i thought it might be a software issue too. but it turned out to be all physical damage.
You know, the funny thing about when it stops working is that it's never all at once.
It's a degrading process of malfunction until it takes repeated button pressing, not so much force, to work. After that it works so seldom that I'm forced to do something about it. It's for those reasons I think it's something more than a hardware problem.
From your experiences, even after a full wipe/new rom installation, your power button still doesn't work, if only for a brief time?
P.S. The new touch based recovery from team win works really well for those of us who can't use our power buttons
Sent from my Nexus S 4G using xda premium
@simms22
Hmm my guess is that there are multiple issues that result in a malfunctioning power button. Props to remapping your search button to lock your phone. It would be a great work around if my phone ever had this problem again. Have search to lock the phone and volume keys to wake it. I'm unsure how you remapped your search button though. Maybe you can tell me how?
knarfrabot said:
P.S. The new touch based recovery from team win works really well for those of us who can't use our power buttons
Click to expand...
Click to collapse
Agreed! If you have no access to a computer with adb/fastboot control the touch ClockWorkMod recovery would be very useful.
knarfrabot said:
You know, the funny thing about when it stops working is that it's never all at once.
It's a degrading process of malfunction until it takes repeated button pressing, not so much force, to work. After that it works so seldom that I'm forced to do something about it. It's for those reasons I think it's something more than a hardware problem.
From your experiences, even after a full wipe/new rom installation, your power button still doesn't work, if only for a brief time?
P.S. The new touch based recovery from team win works really well for those of us who can't use our power buttons
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
ive been using twrp recovery for a while. even the non touch version has a no power button option. but i dont believe that theres anything else but hardware issues here. it is a degradation. at first it comes and goes, later it mostly just comes( ) and doesnt go. i can even hear a slight rattle in the power button area now if i shake the phone.
about after flashing.. at first, 50% of the time it would work after flashing, but it was just coincidence. but now no. btw, i flash many times a day, even then when it first started acting funny. flashing, wiping, it just doesnt make a difference, its coincidence.
---------- Post added at 09:21 PM ---------- Previous post was at 09:16 PM ----------
Tw1tchy said:
@simms22
Hmm my guess is that there are multiple issues that result in a malfunctioning power button. Props to remapping your search button to lock your phone. It would be a great work around if my phone ever had this problem again. Have search to lock the phone and volume keys to wake it. I'm unsure how you remapped your search button though. Maybe you can tell me how?
Agreed! If you have no access to a computer with adb/fastboot control the touch ClockWorkMod recovery would be very useful.
Click to expand...
Click to collapse
ButtonRemapper app, available here on xda for free http://forum.xda-developers.com/showpost.php?p=9399440&postcount=1
you want v0241. i have all the power button functionality with my search key except waking the device(volume rocker wakes my device). short press screen off, long press power menu, long press plus volume down for screenshots.
@tw1tchy, I totally agree it is multiple factors, which is why I can only speak for myself based on my experiences, although your overall experience seems to be similar to mine.
@simms22, I have never noticed a rattle in my phone, its likely that you and I have different causes attributed to the power button failure.
Not trying to beat a dead horse but just for the sake of being thorough, have you tried ODIN? I noticed a substantial difference when I ODIN'ed back to stock.
Sent from my Nexus S 4G using xda premium
Me everytime I drop my phone on concrete my battery door opens and the battery falls of my phone...And you know what's the most odd part ...I get scratches on my phone when I pick it up .....Does anyone else gets this ??
Envoyé depuis mon Nexus S avec Tapatalk
I really like my Nexus S, but I kinda hope this power button self destruct kicks in soon. I see it as a feature - to make buying a Galaxy Nexus easier to justify. Good looking out Sammy.
I've had a similar problem for the last 4 months or so. It started when I dropped my nexus without the cover onto concrete floor. Not good I know.
But anyway...ever since then the power button been funny. Sometimes it didn't work at all and I couldn't turn the screen off and on. It was really bad. It took a while but now I kind of know how to handle it. Still annoying mind u.
Basically with mine the trick is to press the button really really hard towards the top end and it works fine. I've also noticed what some others are saying about changing rooms and doing resets etc. It seems to help as well.
But yeah...I still love my nexus. Lol. I think by me dropping it is the reason for my problems. It probably landed badly and loosened some part of the connection in that section or something. But as I said...all Is good now that I know the trick to it.
Sent from my Nexus S using XDA App
I've had my NS since Christmas Eve 2009 and the power button completely stopped working 2 days ago. I did notice over the past few weeks that it wasn't responding properly. TBH, my NS has been through a LOT in the past 14-months (multiple impacts, spillages, kids etc), I'm surprised it's lasted this long
I'm now using the ButtonRemapper app to use 'search' as the power button. Works great! Plus my volume keys wake the phone up so all is ok.
I love my NS and wish I bought another one when CPW had them for £150 sim free!
It might be time for me to let go of the NS , just have to decide which phone is next (but thats for another thread lol)
ugh mine is under a year old. im very angry that this happened so quickly. im gonna try giving samsung a call. hopefully the will replace it. i shouldn't have to hack my phone in order to make it usable.
@rener78 You seem to have a vast misunderstanding of how sarcasm works. Just as future reference, posting dry, tasteless irony up on the internet as a smart-mouthed statement of ill will is about as practical as a chocolate teapot.
@staplebox Lol! Well played, sir or madam. I can't say posting a thread containing the words conspiracy theory doesn't grant me at least a well placed snarky comment. Although to be fair, I was kinda bored when I wrote it.
@ALL Yes, I get it, we've all dropped our phones before. I guess I expected a bit more from Sammy since my little old HTC hero that I beat halfway to hell is still going strong, while I pampered this nexus and its already giving me problems >1 year in but that's a whole different discussion I suppose.
Sent from my Nexus S 4G using xda premium
great mine just went out yesterday... had mine for a ltl over a year now.
No tapping certain areas or anything works.
I did notice it slowly degrade over the past few weeks.
I used the fix my power button app so my volume keys wake up my phone, but sometimes after using that 5 or 6 times it will stop working too so i have to plug my phone in the charger to turn it on. Is there another way of getting the volume keys to act as a wake button??
edit: i'm gonna try out that button remapper i saw in an earlier post.
tankmaster90 said:
great mine just went out yesterday... had mine for a ltl over a year now.
No tapping certain areas or anything works.
I did notice it slowly degrade over the past few weeks.
I used the fix my power button app so my volume keys wake up my phone, but sometimes after using that 5 or 6 times it will stop working too so i have to plug my phone in the charger to turn it on. Is there another way of getting the volume keys to act as a wake button??
edit: i'm gonna try out that button remapper i saw in an earlier post.
Click to expand...
Click to collapse
if you are using an ics rom go to the main settings, security, lockscreen.. now disable the lockscreen. you can now wake your device with the volume button. its a feature built into ics.
interesting did not know this. Thanks, I think I'm still gonna use the button remapper to change the function of the search key to the power so I can reboot and stuff and go into recovery and such easier since i'm running cm9.
tankmaster90 said:
interesting did not know this. Thanks, I think I'm still gonna use the button remapper to change the function of the search key to the power so I can reboot and stuff and go into recovery and such easier since i'm running cm9.
Click to expand...
Click to collapse
thats what i do. my search button has all the features of the power button but being able to wake the device.
Here's another question what if i need to pull the battery?? I'm rooted and running CM9 what if i go into a boot loop and i need to pull the battery with no charger around (i know how to do it with a charger) would the button remap solve this?
tankmaster90 said:
Here's another question what if i need to pull the battery?? I'm rooted and running CM9 what if i go into a boot loop and i need to pull the battery with no charger around (i know how to do it with a charger) would the button remap solve this?
Click to expand...
Click to collapse
no. the button remapper app doesnt do anything when off or the screens off. honestly, i no boot many times a week(because i test the trinity kernel as its being developed before release), ive figured out a system of light taps near the power button to let the volume buttons let me scroll, and to select in the bootloader.so for me its a non issue. to power up from being powered up, i dont do anything. a, pluging in powers it. b, tapping the back powers it when no usb is available. c, it powers up by itself usually, seconds to a few minutes after powering off.
Being a heavy user of my nexus s since July 2011, the power button died last Sunday.
One of the most important problems i had after that was that i was unable to lock bootloader before giving the mobile to samsung service, because the stuck power button caused problems to fastboot commands and the bootloater usage(menu) in general.
Finally i decided to go to the service and give the phone. The result was that in about an hour they replaced the button and gave me back the mobile. The repair was covered by the 2 years warranty and the unlocked bootloader did not cause any problem to that.
Up to now i have a "brand new" nexus s and i hope that the new button will last much longer.