What does Fastboot mean? - Sprint Samsung Galaxy S III

I know this sounds "nooby" or like a noob question...but what exactly does FASTBOOT mean? like I have seen it on my of the roms ive flashed in the Reboot menu, but I never knew what It really meant...

Google is your friend
Sent from my HTC_Amaze_4G using xda app-developers app

Maybe this will be a short quick explanation. Hopefully link works. Figured this may help explain better than I can.
http://m.androidcentral.com/android-z-what-fastboot

Short answer is, its like a hibernation mode on your computer. Doesn't actually close stuff down, just puts it into a super deep sleep then turns back on.
I have mine unchecked. When i power off my phone i want all aps to close and everything to completely shut off. Then when the phone starts up everything has to start runing from scratch.

oh okay. that makes sense. is it better to fully power off the device instead of fastboot?

I seem to think so.
If my phone is giving me problems a reboot usually fixes stuff.

oh okay. thanks for the good info!!

Related

How do i re-boot in safe mode??

I have an app that is crashing at the start-up of my phone and the error loops and will not let me get to the home screen to uninstall it. I have searched this site and google for how to start the phone in Safe mode so I can uninstall and can't find it anywhere! Can someone re-post or tell me where to find the info?
Thank you so much!
i dont think there is a safe mode, but you can always factory data reset from recovery.
If i recall thats holding power + vol down when your phone is turned completely off.
Sent from my T-Mobile G2 using Tapatalk
There is one on the g1 (dream) I don't remember what it was but there was one. And on the g2 idk maybe its n the book I didnt read it.
Sent from my T-Mobile G2 using XDA App
there is also a safe mode on the slide so there may also be one on this phone, when/if you figure it out please post
I been reading online and it looks like most androids have safe mode and you get to it by.
*Powering Off the phone
*Powering on the phone
*Pushing and holding the menu button when you see the Logo. i.e g1, g2 my touch, nexus etc...
I would try but i dont have my phone with me right now my girl has its. But it wouldnt hurt if you tryed it
xile6 said:
I been reading online and it looks like most androids have safe mode and you get to it by.
*Powering Off the phone
*Powering on the phone
*Pushing and holding the menu button when you see the Logo. i.e g1, g2 my touch, nexus etc...
I would try but i dont have my phone with me right now my girl has its. But it wouldnt hurt if you tryed it
Click to expand...
Click to collapse
So far- that hasn't worked for me... Tried holding the track pad down, and the home key as well...
LOLLLLL @ OP
SAFE MODE..... lmaooooooooo I cant stop laughing (sorry)
but yea the only way to enter recovery is holdin power and vol. down button.
funkadesi said:
LOLLLLL @ OP
SAFE MODE..... lmaooooooooo I cant stop laughing (sorry)
but yea the only way to enter recovery is holdin power and vol. down button.
Click to expand...
Click to collapse
Hum y r u laughting? He isnt talking about recovery he is talking about safe mode. Do ur home work before you post. Safe mode disable auto start apps so you can uninstall apps if ur in a fc loop. Back in the g1 openhome days it came in handy.
Sent from my T-Mobile G2 using XDA App
I'll take a stab and guess that he's laughing at the fact that the OP said "safe mode", which is commonly found on Windows OS, but since the Android is running on top of a Linux kernel, that may have tickled his funny bone.
Sent from my T-Mobile G2 using XDA App
Sv3nt3k said:
I'll take a stab and guess that he's laughing at the fact that the OP said "safe mode", which is commonly found on Windows OS, but since the Android is running on top of a Linux kernel, that may have tickled his funny bone.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Well, there is/was a known safe mode for the older G1/MT3G/Hero, so I guess the last laugh is on him. :x
*OP, you need to search one of those forums mentioned. Try out what they have. No guarentees though.
Sv3nt3k said:
I'll take a stab and guess that he's laughing at the fact that the OP said "safe mode", which is commonly found on Windows OS, but since the Android is running on top of a Linux kernel, that may have tickled his funny bone.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Maybe but now a days safe mode is just what stuff call it now. On cars its limp mode but newer car makers are saying safe mode now
eViL D: said:
Well, there is/was a known safe mode for the older G1/MT3G/Hero, so I guess the last laugh is on him. :x
*OP, you need to search one of those forums mentioned. Try out what they have. No guarentees though.
Click to expand...
Click to collapse
Yea I tryed all the stuff nothing is working.
Holding menu, trackpad, menu on keyboard, Nothing that worked for the nexus, droids,evo or g1/my touch works.
There all the same tho just holding menu while it boots up but none of that works
xile6 said:
Hum y r u laughting? He isnt talking about recovery he is talking about safe mode. Do ur home work before you post. Safe mode disable auto start apps so you can uninstall apps if ur in a fc loop. Back in the g1 openhome days it came in handy.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
As far as I know, there is no SAFE mode on the G2... that anyone knows of.
Sv3nt3k said:
I'll take a stab and guess that he's laughing at the fact that the OP said "safe mode", which is commonly found on Windows OS, but since the Android is running on top of a Linux kernel, that may have tickled his funny bone.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Thank you sir, that is EXACTLY what happened
eViL D: said:
Well, there is/was a known safe mode for the older G1/MT3G/Hero, so I guess the last laugh is on him. :x
*OP, you need to search one of those forums mentioned. Try out what they have. No guarentees though.
Click to expand...
Click to collapse
I didnt own my MT3G long enough to find out that there was such a thing called SAFE mode... To be honest I tried to stay from XDA, because it's so easy to get pulled into the rom flashing business.
And yet... here I am
I meant no harm... its just that I was sitting here at work and I couldnt stop laughing.... but now that I know such a thing exists, I stand corrected.
This is a problem
This is a big problem. I need to be able to debug an application bug that causes the phone not to start up, and going through the factory reset is just too harsh. This is especially a problem for end-users that experience such problems, and they end up losing data due to having to factory reset. Safe mode should be mandatory on all android phones, IMHO. If anyone is reading this over at Google or phone manufacturer's end PLEASE include Safe Mode in every android phone model.
Noyabronok said:
This is a big problem. I need to be able to debug an application bug that causes the phone not to start up, and going through the factory reset is just too harsh. This is especially a problem for end-users that experience such problems, and they end up losing data due to having to factory reset. Safe mode should be mandatory on all android phones, IMHO. If anyone is reading this over at Google or phone manufacturer's end PLEASE include Safe Mode in every android phone model.
Click to expand...
Click to collapse
If you are rooted, you can boot into recovery and use adb to remove the offending app.
Press down the keyboard "S" key (yeah S for Safe mode) at HTC logo during boot.
dwardo said:
Press down the keyboard "S" key (yeah S for Safe mode) at HTC logo during boot.
Click to expand...
Click to collapse
Whoa, nice find, if you found it! I just held the S button down the entire time through bootup (idk if you had to but I did) and I'm in safe mode. To bad op didn't find this out earlier
If only I had found this post 10 days earlyer,now my phone is in the shop and who know when I'll get it back...
If this for real? Hold down s?
sure is, but it wont do much accept it wont allow /data apps from loading - truthfully this isnt be the most helpful way of fixing anything thats why it isnt really talked about.
i could see if you had a malicious app wreaking havoc you could find this useful, if you dont want to wipe all. but lets say you overclocked your phone too much and it wont boot,
it would be easier to just flash a kernel on top of the rom without a wipe.
granted i dont think safe mode would even reset clock speeds.... time to test... eh, too much work
Wow makes me wonder what all the other buttons will do... Press W for warp speed
Send from my Desire Z

[Q] cant turn off, always turns back on in recovery!

can someone help me figure this out? i turn my g2 off, but right after its off it automatically boots into clockwork-mod recovery!! has anyone else had this issue?
rapidfire224 said:
can someone help me figure this out? i turn my g2 off, but right after its off it automatically boots into clockwork-mod recovery!! has anyone else had this issue?
Click to expand...
Click to collapse
Im having the same issue..weird!
Well known issue with CWR. Koush said its not high on his priorities. You could download the source and try to figure it out though.
hmmm, ok. im not an expert with doing things from source. somone else maybe, with more skills?
It's an issue when the charger is plugged in. It should shut down fine if you haven't got the charger connected.
there is nothing wrong with being in recovery while charging -- uses very very very little power and when your ready to turn on the phone, you just hit reboot and your done. Or maybe you want to clear cache before you boot? or maybe you want to backup before you boot or maybe you wanted to fix permissions before you boot? i mean -- its actually a blessing in disguise. I would be more annoyed if this was an issue with the G1 because it was so easy to get to recovery as it was (power and back button) whereas with the g2 if you wanted to get to recovery you'd have to either use adb or its PC counterparts, a reboot app in the rom, or by booting into fastboot and then 3 more steps after that to get to recovery.
its like living next door to the convenience store, bank, grocery store, and the massage parlor. one stop shoppin -- no hard trudging around to get places.
it is a benefit... yes its a bug...(a bug with benefits heh) but frankly i've put in a request that if koush updates recovery i want to be able to "keep" this bug.
androidcues said:
there is nothing wrong with being in recovery while charging -- uses very very very little power and when your ready to turn on the phone, you just hit reboot and your done. Or maybe you want to clear cache before you boot? or maybe you want to backup before you boot or maybe you wanted to fix permissions before you boot? i mean -- its actually a blessing in disguise. I would be more annoyed if this was an issue with the G1 because it was so easy to get to recovery as it was (power and back button) whereas with the g2 if you wanted to get to recovery you'd have to either use adb or its PC counterparts, a reboot app in the rom, or by booting into fastboot and then 3 more steps after that to get to recovery.
its like living next door to the convenience store, bank, grocery store, and the massage parlor. one stop shoppin -- no hard trudging around to get places.
it is a benefit... yes its a bug...(a bug with benefits heh) but frankly i've put in a request that if koush updates recovery i want to be able to "keep" this bug.
Click to expand...
Click to collapse
A convenience store that keeps its blinding storefront lights on all night even though the whole damn place is closed except for a soda machine outside.
Sent from my HTC Vision using XDA App
helloelan said:
A convenience store that keeps its blinding storefront lights on all night even though the whole damn place is closed except for a soda machine outside.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Talking about the screen?
Hold the back button. On my Pulse it turns the screen off. Or totally black, I can't remember.
Better yet, turn it upside down.
Or, leave it switched on.
DanWilson said:
Talking about the screen?
Hold the back button. On my Pulse it turns the screen off. Or totally black, I can't remember.
Better yet, turn it upside down.
Or, leave it switched on.
Click to expand...
Click to collapse
First time I discovered this bug I was about 9 hours late. I grabbed my hot ass phone n unplugged. I put it infront of the ac vent so it could cool down. After about ten minutes I powered up n the setcpu widget told me the phone was at 120 something degrees.
Needless to say my first g2 never ran right after words. Too many random reboots n odd graphical glitches.
I unrooted and cried bad hinges so tmobile would replace it.
Damn shame its not on his priorities list...

[Q] Rooted phone and now wont turn on

I recently Rooted my sealed samsung galaxy s3 without having a clue what i'm doing i downloaded this program called snapdragon to root it along with ODIN. The phone rooted fine everything was working okay, I even downloaded an app to see if the root was successful and indeed it was. I shut the phone down wake up in the morning to turn it back on and I get zero response. Any help/direction would be greatly appreciated.
Thanks!
Might seem obvious, but have you tried leaving it plugged in for ten-fifteen minutes?
joshnichols189 said:
Might seem obvious, but have you tried leaving it plugged in for ten-fifteen minutes?
Click to expand...
Click to collapse
Yes of course I've tried leaving it plugged in for several hours and the night before the phone was at 100% charge so I doubt battery is the issue.
Tks though
Did you try booting into recovery?
Sent from my SGH-T999 using xda app-developers app
Ummm seems like u can fix it.... go bak to stock using odin as well and go back to stock and i believe cwm is going to be gone so as your root access so re-do it but this time guide yourself through a turorial(a.k.a google) and since you have to clue i think the best choice for you is to find a video tutorial in case your doubting or getting confused with the steps or sometimes to see what you did wrong that caused the phone to misbehave...
Sent from my SGH-T999 using xda app-developers app
*sigh*
This is why I hate one-click-root kits, you get people doing things to their phones they don't understand, wreck it and come here saying "help, I don't know what do do!" Something like this you really should at least understand the basics. I hope this gets you more involved in researching what's actually happening. It's important to know what's happening to your device as well as why, that way if something goes badly you'll have an idea of how to get out of it.
Sorry, enough lecturing, let's see if we can get something going here. Give a bit more detail about what happens. You're phone is shut down, right? You hit the power button and no response, like the battery is actually out of the phone, or does it turn on and give you a blank screen? If it was a brick, I'd think you'd at least see the boot screen before everything goes wrong.
Ok, I'm going to go ahead and assume you've removed the battery. If you haven't, do so now.
If it still won't turn on, try actually holding the power button down for 30-60 seconds. I had a scary moment with my phone yesterday, rebooted it running Wicked v5 on Trinity and the screen just died. I've been running that rom for a week with just a couple of issues here and there, nothing out of the ordinary. Pulled the battery and tried again, nothing. After holding the power button down for a bit I felt a quick vibrate, then the boot logo came up. No idea why, I'm going to have to look into it.
Beyond that, I'm brand new to this phone and Sammy's Android devices so I'm still learning myself. HTC phones I could help out more with, but I'm still a bit clueless with this thing.
kitsunisan said:
*sigh*
This is why I hate one-click-root kits, you get people doing things to their phones they don't understand, wreck it and come here saying "help, I don't know what do do!" Something like this you really should at least understand the basics. I hope this gets you more involved in researching what's actually happening. It's important to know what's happening to your device as well as why, that way if something goes badly you'll have an idea of how to get out of it.
Sorry, enough lecturing, let's see if we can get something going here. Give a bit more detail about what happens. You're phone is shut down, right? You hit the power button and no response, like the battery is actually out of the phone, or does it turn on and give you a blank screen? If it was a brick, I'd think you'd at least see the boot screen before everything goes wrong.
Ok, I'm going to go ahead and assume you've removed the battery. If you haven't, do so now.
If it still won't turn on, try actually holding the power button down for 30-60 seconds. I had a scary moment with my phone yesterday, rebooted it running Wicked v5 on Trinity and the screen just died. I've been running that rom for a week with just a couple of issues here and there, nothing out of the ordinary. Pulled the battery and tried again, nothing. After holding the power button down for a bit I felt a quick vibrate, then the boot logo came up. No idea why, I'm going to have to look into it.
Beyond that, I'm brand new to this phone and Sammy's Android devices so I'm still learning myself. HTC phones I could help out more with, but I'm still a bit clueless with this thing.
Click to expand...
Click to collapse
Yes I have taken out the battery replaced it several times. I hit the volume home and power button several times. When I do that I get a zero response nothing shows up I hear no sound its as if the phone is just completely dead. One thing I did realise is when I plug it into the computer and press the power button what would happen is it would connect and automatically disconnect
Can you get into Download mode? Volume down + Home + Power button?
Sent from my SGH-T999
Don't forget to let go of the power button when going into recovery.
Have you done what the other post said?
Hold power for about 10-30 seconds. Does it do anything? Do you feel a verrrry slight vibration?
When you plug it in without doing anything else does the computer see it in device manager? How about if you press power once? Or holding power down?
Does it register that its charging?
This may sound dumb but did you try powering up without the phone plugged into anything?
Sent from my SGH-T999 using xda app-developers app
DocHoliday77 said:
Have you done what the other post said?
Hold power for about 10-30 seconds. Does it do anything? Do you feel a verrrry slight vibration?
When you plug it in without doing anything else does the computer see it in device manager? How about if you press power once? Or holding power down?
Does it register that its charging?
This may sound dumb but did you try powering up without the phone plugged into anything?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Come on guys I respect the fact that everyone here is out here to help but read my post I have done every way common sense possible I actually need some real advice maybe how to reset factory setting with a device or maybe download a program.
Any help would be useful.
cyklosporine said:
I recently Rooted my sealed samsung galaxy s3 without having a clue what i'm doing i downloaded this program called snapdragon to root it along with ODIN. The phone rooted fine everything was working okay, I even downloaded an app to see if the root was successful and indeed it was. I shut the phone down wake up in the morning to turn it back on and I get zero response. Any help/direction would be greatly appreciated.
Thanks!
Click to expand...
Click to collapse
cyklosporine said:
Come on guys I respect the fact that everyone here is out here to help but read my post I have done every way common sense possible I actually need some real advice maybe how to reset factory setting with a device or maybe download a program.
Any help would be useful.
Click to expand...
Click to collapse
Ummm. Sorry but maybe im missing something? Your first sentence in your op says you didnt have a clue what you were doing....
And where is it supposed to infer that you've done everything already?
Imo you have been getting 'real' advice but from what I see you haven't 'really' answered anyones suggestions.
No one can help you if you dont tell us what exactly you have tried and what what happened when you did.
For example in your only response you mentioned hitting the volume and home keys a bunch of times....what exactly do you mean by this? Did you hold them while trying to power up? Volume up or down? Did you release any of them during that process, and if so which and when?
Its kinda hard to help someone who doesn't have a clue what they are doing and only responds that hes done everything common sense dictates.
I seriously mean no offence but to me common sense would dictate that you not try rooting or anything if you know you dont know what you're doing.
It would also dictate that if you want further help with this you should go back and respond to what everyone suggested.
Like I said, im not trying to offend, just help.
Sent from my SGH-T999 using xda app-developers app
I am having the same issue
I just tried flashing Android Revolution to my phone. I went through the whole set up process. Went to reboot then it went blank. Nothing. I get nothing when I plug it in. The computer doesn't recognize any device attached to it. I've tried all the ideas listed here and I get nothing. It's as if the phone is completely dead. When I flashed the rom my battery was at 90%. I've used various roms on different phones and this was the first time I did it to my Galaxy s3 and this is the first time it's ever happened. Talk about frustrating.
Jtag
Sent from my SGH-T999 using xda premium
lokitsar said:
I just tried flashing Android Revolution to my phone. I went through the whole set up process. Went to reboot then it went blank. Nothing. I get nothing when I plug it in. The computer doesn't recognize any device attached to it. I've tried all the ideas listed here and I get nothing. It's as if the phone is completely dead. When I flashed the rom my battery was at 90%. I've used various roms on different phones and this was the first time I did it to my Galaxy s3 and this is the first time it's ever happened. Talk about frustrating.
Click to expand...
Click to collapse
If you can get to download mode by holding vol up home power. You then you can use this. http://forum.xda-developers.com/showthread.php?t=1771687
To get our phone back. I had the same problem after a bad flash. My phone wouldn't do anything. After I left it plugs in for an hour I was able to get into download mode ..hope you get urs back. If its what happened to me then u might find that you have no 4g anymore... If that's the case let me know and I'll tell u what I did to get it back.
Sent from my SGH-T999 using xda premium
cyklosporine said:
Come on guys I respect the fact that everyone here is out here to help but read my post I have done every way common sense possible I actually need some real advice maybe how to reset factory setting with a device or maybe download a program.
Any help would be useful.
Click to expand...
Click to collapse
Yeah, good luck getting ANY further help with that attitude bro!!!
Sent from my SGH-T999 using xda premium
I got same problem with my friend's phone
He rooted it by some oneclick root pc program (I rooted this way too, and no problem will come) and flashes Rom with some android apk. ... After questioning him, I found out he DO NOT unlock bootloader.. .. I never seen phone in this status before... another strange thing is that when is phone in charger, battery and phone isn't heating up.. It's cold like ice... This is strange for me..I try 5 android devices and every is heating when it charging up.. (sorry for my bad English) Thank you and maybe someone comming with answers Phone doesn't react, no display brightness show up, no vibrating, no response
I have rooted my phone samsung galaxy grand 2 via odin after that flash the rom cm 11 and reboot my phone it got stuck into boot loop. Then i have done 1 stupidity again i push twrp file in that now m not able to go in recovery mode what should l i do now.
Wrong forum, look here: http://forum.xda-developers.com/galaxy-grand-2
I don't know anything about the phone but you could try looking for the current ROM on the phone at sammobile.com and then re-flash it via Odin.
i unluged the device before dhe odin finished his job ( by mistakeee ) and now it doesnt turn on , charge , go to recovery/odin , hold down power button for 30-60-120 sec nth hapend, it has baterri 90-100 % . plss guys help me :'( i have an samsung galaxy s advance .

[Q] My TMO S3 (T-999) will not turn on.

I didn't have luck finding an answer to this on the forums so I figured I'd make a new post. I have been running a version (not sure which) of Liquid Smooth for a few months. Yesterday, I noticed my phone was on a boot loop. It would vibrate, show the Samsung Galaxy S3 screen and then turn off. I pulled the battery and memory card and tried again. It still wouldn't come on. I pulled the battery and then rebooted to recovery mode. I went there to wipe and reboot. When I tried to do that it said something like, "what you are looking for can't be found". I pulled the battery again but this time when I tried to turn it back on it did nothing. I have no vibrations, I have nothing on my screen. I'm not sure what could have happened because I haven't made a change to my phone for quite some time. Any ideas?
bralaheh said:
I didn't have luck finding an answer to this on the forums so I figured I'd make a new post. I have been running a version (not sure which) of Liquid Smooth for a few months. Yesterday, I noticed my phone was on a boot loop. It would vibrate, show the Samsung Galaxy S3 screen and then turn off. I pulled the battery and memory card and tried again. It still wouldn't come on. I pulled the battery and then rebooted to recovery mode. I went there to wipe and reboot. When I tried to do that it said something like, "what you are looking for can't be found". I pulled the battery again but this time when I tried to turn it back on it did nothing. I have no vibrations, I have nothing on my screen. I'm not sure what could have happened because I haven't made a change to my phone for quite some time. Any ideas?
Click to expand...
Click to collapse
Battery is going bad or the hardware is going bad.
What recovery and version?
Have you tried booting into recovery or download mode?
Take battery out and put back in:
Recovery: volume up, home button, power
Download mode: volume down, home button and power
Sent from my SGH-T999 using XDA Premium 4 mobile app
Aerowinder said:
Battery is going bad or the hardware is going bad.
What recovery and version?
Click to expand...
Click to collapse
I'm not able to get the phone to come on so I don't know the versions of anything I've used. All I know is my phone is the T-999. Sorry, I know that's probably no help at all.
You don't have a spare battery do you? If not, you should see if you can find someone you know that has one. It could be that you battery just went bad.
Sent from my SGH-T999 using XDA Premium 4 mobile app
Da Kine said:
Have you tried booting into recovery or download mode?
Take battery out and put back in:
Recovery: volume up, home button, power
Download mode: volume down, home button and power
Sent from my SGH-T999 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I tried all of this but did not have any luck. The phone doesn't do anything. It doesn't make any sense how it can just stop working out of nowhere like this. Wouldn't it mess up immediately after I rooted/added a custom ROM if I did something wrong rather than a few months later? I'm afraid that the phone may be done for. : (
bralaheh said:
I tried all of this but did not have any luck. The phone doesn't do anything. It doesn't make any sense how it can just stop working out of nowhere like this. Wouldn't it mess up immediately after I rooted/added a custom ROM if I did something wrong rather than a few months later? I'm afraid that the phone may be done for. : (
Click to expand...
Click to collapse
I hate to say it, but usually when something like this happens it's most likely to be hardware related. If you don't have access to a spare, go to a T-Mobile store and ask to borrow a battery to see if it'll power up with a known good one. Batteries usually don't just die like that, but it can happen.
So you don't get a short vibe or anything out of it? What about when you hold the power button for about 10seconds? If you remove the battery and plug it in, do you get an led lit up? How about with the battery in?
If the battery turns out to be good, you could attempt the debrick method by KAsp3rd stickies in development. I don't see why it would be a brick, but at this point I'd try anything available just to be positive.
If you have insurance on it, it may be time to consider using it.
Sorry to hear this is happening to you man. These S3's are starting to get a little old though, and no matter how careful we are, they do suffer more abuse than any other electronics we may use. I'm seeing more and more posts like yours recently, I'm sorry to say.
Keep us updated on it, and good luck with it!
Sent from my SCH-I535 using Tapatalk 4

Anyway to recover?

My wife's s3 shut itself down a few days ago and now it's stuck in a boot loop. It was on rooted stock 4.1.
It will not fully boot into the system, trying to get into recovery will barely let you see the recovery screen before it cuts off, and getting into download mode will turn off after about 20 sec.
I'd love to be able to savage some things from the device, but I'm lost as to what I could try now.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Sounds like a faulty/stuck power button. A common thing these days. Open the device and play with the switch a little. Ive seen several people say this fixed it temporarily. Doesn't work for everyone though. If it is the button, the only permanent fix is to replace the part. Only a few bucks online and I dont believe its too difficult to do.
Thanks for trying to help. Unfortunately it didn't help me. Took it apart, physical button actuates fine, switch underneath seems to click and return ok. Blew compressed air to be sure nothing's making it stick, button and switch. When I got it back together, except for actually having recovery load up for a few sec (once), it is behaving the same way.
Seeing as I have no soldering experience or equipment and we have already got my wife another device, I may just call it dead.
Thanks again for the help.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Sorry I cant be of better help for that. If you want to do a quick test though, just so you know for sure....
Take out the battery, then put it back in and wait a few moments. If it turns on by itself, its almost definitely a power switch gone bad.

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