Hello, new here and I know nothing about rooting nor have I rooted my phone but after looking all over the net I have come here in hopes of finding some tech wizards that can help me.
The Problem:
Turned phone off and a few hours later I tried turning it back on but it only shows the screen with model number and Samsung under it. It shows for a few seconds then the screen goes black and keeps looping like this. I have not rooted or anything. Not dropped in water ( water square is pink though). Phone shows no water damage or corrosion after opening.
What have I done?
I tried booting in recovery and download mode but i have never done it before and I was not successful at getting any other screen besides the model number Samsung screen.
I have tried a different battery after spending some time at the mall (no on carries it any more as it is no longer made) different battery did nothing. Repair guys suggested it may be the button sticking and said hey could clean it for $25. Instead I went home searched the web and disassembled my phone. I cleaned the button areas on the inside of the case and the contact on the inside attached to the circuit board. I have reassembled and it still does the same thing.
After more research I found a video saying to actually remove the internal button from the circuit board to stop the loop (which will leave me with no power button) I have not tried this as I am not that bold (yet).
I am wondering if it is a software problem that can be fixed by using Odin and installing the stock firmware but I just have not found a proper guide that makes enough sense for me to actually try. I don't want to waste my time with something I have never done and make things worse.
I have downloaded Odin and firmware from sammobile but that is about as far as I can go without some hand holding....
Thanks for reading my story any help would be much appreciated.
Fishheadman said:
Hello, new here and I know nothing about rooting nor have I rooted my phone but after looking all over the net I have come here in hopes of finding some tech wizards that can help me.
The Problem:
Turned phone off and a few hours later I tried turning it back on but it only shows the screen with model number and Samsung under it. It shows for a few seconds then the screen goes black and keeps looping like this. I have not rooted or anything. Not dropped in water ( water square is pink though). Phone shows no water damage or corrosion after opening.
What have I done?
I tried booting in recovery and download mode but i have never done it before and I was not successful at getting any other screen besides the model number Samsung screen.
I have tried a different battery after spending some time at the mall (no on carries it any more as it is no longer made) different battery did nothing. Repair guys suggested it may be the button sticking and said hey could clean it for $25. Instead I went home searched the web and disassembled my phone. I cleaned the button areas on the inside of the case and the contact on the inside attached to the circuit board. I have reassembled and it still does the same thing.
After more research I found a video saying to actually remove the internal button from the circuit board to stop the loop (which will leave me with no power button) I have not tried this as I am not that bold (yet).
I am wondering if it is a software problem that can be fixed by using Odin and installing the stock firmware but I just have not found a proper guide that makes enough sense for me to actually try. I don't want to waste my time with something I have never done and make things worse.
I have downloaded Odin and firmware from sammobile but that is about as far as I can go without some hand holding....
Thanks for reading my story any help would be much appreciated.
Click to expand...
Click to collapse
Try this - Press and hold Volume up + Home + Power buttons together a few seconds, you should get recovery mode. And then find factory reset.
garak elim said:
Try this - Press and hold Volume up + Home + Power buttons together a few seconds, you should get recovery mode. And then find factory reset.
Click to expand...
Click to collapse
Thanks for the reply. I have tried this many times and tried again after reading your reply. This should work fairly fast from what I understand right?
My phone is a virgin mobile phone (Canada) is it possible they have locked out recovery / download modes?
When I try to start in recovery nothing happens at all. Screen does not light, phone does not vibrate. Again I have never tried this until now so I don't know if the phone ever booted into these special modes when it was working.
Fishheadman said:
Thanks for the reply. I have tried this many times and tried again after reading your reply. This should work fairly fast from what I understand right?
My phone is a virgin mobile phone (Canada) is it possible they have locked out recovery / download modes?
When I try to start in recovery nothing happens at all. Screen does not light, phone does not vibrate. Again I have never tried this until now so I don't know if the phone ever booted into these special modes when it was working.
Click to expand...
Click to collapse
It's weird. I found something on page hard-reset.com. I cannot post link here now. I put "samsung ace2 recovery" into google and it was on first page. It's hard reset key combination. Try it.
When you plug the phone into the charger, do you get the battery charging status screen?
garak elim said:
It's weird. I found something on page hard-reset.com. I cannot post link here now. I put "samsung ace2 recovery" into google and it was on first page. It's hard reset key combination. Try it.
Click to expand...
Click to collapse
Forget my previous post. I was wrong. I try find another solutions.
Is your battery fully charged?
Related
Hello all,
I'm got an I747 that one day just decided to stop working on me. I was running stock rooted firmware and have never tried custom roms.
The phone repeatedly tries to boot up and then shut down. I can't ever get pass the Samsung logo.
The same thing happens when trying to access recovery or download mode. I see the initial download/recovery screen and then the phone shuts off.
Is the motherboard toast?
My friend has an I747 as well but it has been blacklisted. Are there any parts I can swap from one another to get either one of them working?
Any help or input is appreciated.
r i c h said:
Hello all,
I'm got an I747 that one day just decided to stop working on me. I was running stock rooted firmware and have never tried custom roms.
The phone repeatedly tries to boot up and then shut down. I can't ever get pass the Samsung logo.
The same thing happens when trying to access recovery or download mode. I see the initial download/recovery screen and then the phone shuts off.
Is the motherboard toast?
My friend has an I747 as well but it has been blacklisted. Are there any parts I can swap from one another to get either one of them working?
Any help or input is appreciated.
Click to expand...
Click to collapse
Does removing & reinserting the battery (with no buttons pushed) trigger the restart behavior?
pc103 said:
Does removing & reinserting the battery (with no buttons pushed) trigger the restart behavior?
Click to expand...
Click to collapse
Yes, just by inserting the battery the phone vibrates and begins to start up.
Once the Samsung logo appears it turns back off again.
r i c h said:
Yes, just by inserting the battery the phone vibrates and begins to start up.
Once the Samsung logo appears it turns back off again.
Click to expand...
Click to collapse
Indicates Samsung stuck power button syndrome. A lot has been posted about this.
I would start with warranty service if available.
If not, search a lot & choose solutions carefully.
It happened once with my Captivate & teardown & blowout cured it,
though I never observed the physical defect (only the symptoms).
I have used apps to reduce my use of the button ever since, with GS2 & GS3.
Approach teardown with extreme caution if you are not experienced.
Gently tapping a table edge with the upper right has worked for some.
pc103 said:
Indicates Samsung stuck power button syndrome. A lot has been posted about this.
I would start with warranty service if available.
If not, search a lot & choose solutions carefully.
It happened once with my Captivate & teardown & blowout cured it,
though I never observed the physical defect (only the symptoms).
I have used apps to reduce my use of the button ever since, with GS2 & GS3.
Approach teardown with extreme caution if you are not experienced.
Gently tapping a table edge with the upper right has worked for some.
Click to expand...
Click to collapse
Thanks for the advice. I did not know this was a common problem.
Unfortunately I am out of warranty so I will try to fix this myself.
I have already taken apart the phone before so I am fine with tearing it down again.
What do you mean by blowout? Do I physically try to tap the power button of the mother board on a table edge?
r i c h said:
Thanks for the advice. I did not know this was a common problem.
Unfortunately I am out of warranty so I will try to fix this myself.
I have already taken apart the phone before so I am fine with tearing it down again.
What do you mean by blowout? Do I physically try to tap the power button of the mother board on a table edge?
Click to expand...
Click to collapse
Push out any dust or debris outward using forced dry air.
The gentle tapping of the button edge area is a pre-disassembly alternative.
Many opinions, experiences & videos have been posted. It's worth it to sample some first.
One beautiful day the phone just restarted from itself. (wasnt really shocked though) After that it entered again into a boot loop, Im saying again because it happened once before and i noticed it was the SD Card and I just had to format it. So far so good, but now it doesnt matter if I pull out the SD Card or SIM, even battery... once ive put the battery the phone starts booting from it self and restarts everytime on a different place, like samsung logo, CM logo, CWM recovery, download mode.. it just cant stay on one place so i can choose an option. Only once ive managed to do a cache and dalvik wipe, also didnt help. Keeps rebooting and rebooting. Ive tried different ways of booting, with USB cable, with the recharger adaptor and without them. Left it for a whole night without battery, didnt help. I cant even manage to flash the stock ROM again, still reboots. I thought the power button was stuck or something, tried moving it arround but also didnt help. If you ask how many time Ive flashed the device... well perhaps countless, about 40 times counting the stock firmware. (maybe this number for some other maniacs is little, but now i see it like too much, because im kinda attached to this phone, the previous HD2 suffered a lot more xD) So guys my question is, do you have any suggestions? Ive searched the internet to check if the symptoms are close to hard brick but... didnt really saw any identity.
So.....
Normal boot.....it reboots, shuts off reboots.......?
Recovery mode.....reboots, shuts off, reboots.......?
Download mode.....reboots, shuts off, reboots......?
Battery insertion.....reboots, shuts off, reboots.......?
Same sequence every time?
Irrespective of which of the above scenarios is taking place?
If you just sat and watched it without pressing any buttons, will it endlessly reboot, shut off, reboot?.....
During this cycle, does it get to the same point in the boot process before restarting?.....
Sent from my GT-I9100 using xda app-developers app
keithross39 said:
So.....
Normal boot.....it reboots, shuts off reboots.......?
Recovery mode.....reboots, shuts off, reboots.......?
Download mode.....reboots, shuts off, reboots......?
Battery insertion.....reboots, shuts off, reboots.......?
Same sequence every time?
Irrespective of which of the above scenarios is taking place?
If you just sat and watched it without pressing any buttons, will it endlessly reboot, shut off, reboot?.....
During this cycle, does it get to the same point in the boot process before restarting?.....
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Thank you! I thought nobody will answer. It reboots right after passing 3 to 5 seconds, sometimes on the CM Samsung splash, sometimes on the spinning CM circle(boot loading image), when i succeed entering CWM or download mode reboots again. I cant boot it normally and reach the home screen. I read something that it could be from the kernel boot code, im using CM 10 (if im not guessing wrong).
I've answered a number of threads in the XDA W forum where members were experiencing similar issues to yourself. I doubt it's software related as during access to download mode and recovery mode , the phone isn't even using the "main" system software and kernel....these modes use their own independent kernel and system (it would be HIGHLY unlikely that two separate systems and two separate kernels are suffering from the same fault).
If all of the symptoms I wrote about in my original reply apply to your phone, then it all points towards a faulty power button.
As I understand it, Samsung uses a type of button commonly referred to as "temporary push to make" which means that when you push the button, two contacts are bridged to make an electrical connection but when you release the button the contact is broken. Under normal circumstances, this "make, break" sequence will start a normal boot sequence. Under normal conditions, long pressing this button again will begin the shutdown process. Now assume for a moment that the button has become damaged....where this contact that is meant to be momentary, has in fact become permanent......the result would be a phone that will attempt to start up and shut down in an endless cycle....basically, YOUR phone........
Sent from my GT-I9100 using Tapatalk
Yeah, I also thought that as a reason but discarded it quickly because the button doesnt have any problems when pushing it. I mean it freely comes back when pushed and i can also freely push it without problems. Also discarded that problem because i thought the button cant stop the booting cycle while booting, but it seems like it can. Thanks for all the answering I will try fixing it and will report as soon as possible.
The plastic button is separate to the electrical part I described....so it is entirely possible for the part you normally touch to *seem* to be working as it should.....only for it to work against the faulty electrical part........
And yes, that type of fault IS caused by the permanent contact of a faulty electrical button. Anybody who has a normally booting W (as I do) can re create this fault simply by pressing and holding the power button......the phone WILL enter a boot/shut down/reboot cycle for as long as the button is held........
The same condition can be re created on my S2 in exactly the same way as well.....
Sent from my Infected KitKat bar.....
Well.. bad news.. i've managed to disassemble it, tried to see whats wrong with the button (not the plastic one), tried moving it arround, nothing seems to be damaged, still stable at one place, also tried booting the phone 3 times without any covers and the result was the same...
Perhaps i should drive it to service.
Check your date of purchase.....Samsung phones have a two year warranty.......
Sent from my Infected KitKat bar.....
Well bad luck here also, i got it almost brand new from England and I'm not from England. I bought it over online shop sold as a second hand long time ago, it was just a matter of time to damage him. Thanks anyway for all the help, I'll see what i can do with the service.
Bad luck mate.....word of caution though.....as you've found out, the button is soldered directly to the motherboard, Samsung's "modus operandi" seems to be rather than attempt to repair the button, simply replace the entire MB........for a phone that is outside warranty, this will have (erm) "cost implications" lol......basically they like to charge as much as they can in situations like these.....eg/ board replacement when button repair would be enough.....
Sent from my Infected KitKat bar.....
keithross39 said:
Bad luck mate.....word of caution though.....as you've found out, the button is soldered directly to the motherboard, Samsung's "modus operandi" seems to be rather than attempt to repair the button, simply replace the entire MB........for a phone that is outside warranty, this will have (erm) "cost implications" lol......basically they like to charge as much as they can in situations like these.....eg/ board replacement when button repair would be enough.....
Sent from my Infected KitKat bar.....
Click to expand...
Click to collapse
True, my phone suffered the Power Off Loop as you may know from my previous thread. I decided to send my phone to a couple of repair shops and they said that the phone "cnt be repaired". i thought they knew about the change of MB but no. So rite now, my Galaxy W is in the grave ...
Sent from my GT-S6500 using xda app-developers app
i had encountered this issue with my galaxy wonder today and would like to seek for solutions over the internet. regardless that i also checked the button by disassembling the covers and separated the plastic button with the one on the board and tried to boot it but it still the same.
as most of you guys experienced this issue, what would you guys suggest me to do with my phone? i wish to save this phone for sentimental reason. would change the button DIY-ly is worth it? is it available for me to get the parts?
or did you guys manage to get a better solution?
thanks!
So, after flashing the latest firmware from sammobile for the Galaxy Tab S 10.5 with Odin, I am now the not-so-proud owner of a what seems to be unresponsive - working - device.
Let me explain:
I just downloaded the latest firmware from sammobile.
I followed the instructions from sammobile, which basically says normal flash with Odin.
Plugged it in, started Odin, put the file in the right place and started the flash.
Odin does its thing, everything goes well, device is showing me a nice blue dotted bar which is filling up slowly, good.
And then suddenly Odin reports "FAILED" after is was done with /system.
Device has stopped working, blue bar not filling anymore.
I reset Odin with hope to restart the flash, with no result.
The device is not being recognized anymore by USB, and it's now stuck in the "odin mode" screen.
After seeking some advice on IRC I found that the only way to get the power off is to unplug the battery, which is harder that it sounds.
So after a good 30 minutes of carefully prying and making my way around the tablet I managed to get the cover of.
As I'm looking at the naked device and wondering "how the hell do i get this battery out". This is not like a normal phone or laptop or any kind.
I found a couple of little screws, 4 of them, around the battery so I unscrewed these and the battery came 'loose' but was held in place by 2 flat cables which I couldn't remove.
Put them back in, and all of a sudden my tablet's sceen was 'off', but I'm not sure it's really powered off because the powerbutton has no response.
I'm stuck and it the thought of just binning the tablet is frustrating me.
Anybody got any ideas of what this might be and how to fix it?
[edit]
I found out it wasn't powered off, it was just the screen. I could feel the CPU was still emitting heat.
So I unplugged the battery, let it cool down for a couple of minutes, plugged it back in, and now there is nothing.
No screen, no usb recognition, no power.
Any suggestions are appreciated.
You didnt need to take out the battery. Your should have exit download mode by doing power, home, vol down buttons for 30 seconds and it should reboot and you could of tryed again. If that didnt work you could have let it drain. Im not sure about helping with the battery part as i never opened it.
easy fix - check http://forum.xda-developers.com/showpost.php?p=50412284&postcount=8
no need for draining the battery. tested and it works. happens once to me, use above method and problem solved.
can use my modded version attached, but, please be aware, it's ONLY FOR RESETTING THE STUCK DOWNLOAD MODE !
DUHAsianSKILLZ said:
You didnt need to take out the battery. Your should have exit download mode by doing power, home, vol down buttons for 30 seconds and it should reboot and you could of tryed again. If that didnt work you could have let it drain. Im not sure about helping with the battery part as i never opened it.
Click to expand...
Click to collapse
I tried that, but didn't work. The tablet was/is unresponsive. Draining wasn't an option, battery was just fully charged.
freaksamael said:
easy fix - check http://forum.xda-developers.com/showpost.php?p=50412284&postcount=8
no need for draining the battery. tested and it works. happens once to me, use above method and problem solved.
can use my modded version attached, but, please be aware, it's ONLY FOR RESETTING THE STUCK DOWNLOAD MODE !
Click to expand...
Click to collapse
Thanks for this! Am going to try this once my screen works again.
At this point it goes 'on' but the screen doesn't, and there is still no USB recognition so I guess I got a nice expensive paperweight
Hi everyone,
I'm experiencing pretty silly situation with my phone.
So the story begins here:
I was surfing the web while listening to music in the bus when suddenly my oneplus3 randomly turned off and I couldn't turn it back on. (I was on something around 15% on battery so it's not a low battery problem) I tried to turn it on several times and after holding the power button for like 10secs it turned on, and after pressing the power button again (because I needed to get past unlocked bootloader screen and dm-verity) I saw a boot screen. The capacitive button leds turned on and after 3 secs it turned off again, so I started worrying... After a while I tried to access the recovery, but no luck at all. It powers it self off after bootscreen. So I started to research. Tried to flash the entire OS, partritions with msmdownload tool. After several unsuccessful flashes (firehosewritedata failed sometimes while writing userimg or system.img or boot.img) I did get the download complete green text message, and after successful flash, the white LED turned on, even the phone was not plugged in USB or charger and turned off. The screen is completely black and the white led just flashes constantly without blinking or anything. I could only turn the led off by pressing the power button for another 10 secs. And after turning the phone off, problem still remains. After oneplus logo phone shuts down...
I can access bootloader.
And after flashing everything should be on stock, because now I only got screen only about bootloader, no dm-verity..
And of course - I still cannot access the recovery.
p.s. I tried to do the power cycle (as the tech support told me) but still no luck at all.
did u tried the full msmdownload tool (1gb) or the 55mb version ?
Mukthar. said:
did u tried the full msmdownload tool (1gb) or the 55mb version ?
Click to expand...
Click to collapse
1GB version
djemm1996 said:
1GB version
Click to expand...
Click to collapse
Are you sure that you did it right? Did your phone show up as mentioned in the instructions?
Puddi_Puddin said:
Are you sure that you did it right? Did your phone show up as mentioned in the instructions?
Click to expand...
Click to collapse
Of course. Everything is done right. I also get that green "download complete" message.
p.s I also opened the phone. water indicators are fine and no major defects what can i see by eye... All connectors are good as well.
Puddi_Puddin said:
Are you sure that you did it right? Did your phone show up as mentioned in the instructions?
Click to expand...
Click to collapse
And yes, phone was connected right. :good: installed drivers with test mode on Win10 and got Snapdragon device in COM devices. As well the MsmDownload tool shows up my device in port #20
Any ideas?
djemm1996 said:
Any ideas?
Click to expand...
Click to collapse
Follow method 2 from the Hard Brick guide by Naman Bhalla and try two or three times.
Sometimes it takes more than once for restoration.
Since you opened the phone, i think your warranty is gone now.
If the msmdownloadtool didnt help you, there is nothing you can do i think.
try to flash again, and if it still maybe something short inside.
if you have disassembly your phone, try disconnecting various flex cable like camera, sim slot etc that connect to the mainboard, that doesn't prevent device from powered on, then try to turning it on.
if it still, check your mainboard, if you don't know how, send it back.
AcidNoteZ said:
Since you opened the phone, i think your warranty is gone now.
If the msmdownloadtool didnt help you, there is nothing you can do i think.
Click to expand...
Click to collapse
Is ir really gone? There is a still warranty void sticker on the screw there, but of course it's possible to see by eye that the phone has been opened.
I have an appointment with Level2 tech support @oneplus, they are going to remotely flash the entire OS, but do you think they are using pretty similar technique as the msmdownloadtool?
djemm1996 said:
Is ir really gone? There is a still warranty void sticker on the screw there, but of course it's possible to see by eye that the phone has been opened.
I have an appointment with Level2 tech support @oneplus, they are going to remotely flash the entire OS, but do you think they are using pretty similar technique as the msmdownloadtool?
Click to expand...
Click to collapse
They are doing the same thing like you did.
I already had a session since i thought they are going to do something "special"
You can try the remote session but im afraid that wont help you if you already did it multiple times.
What about battery? Charged?
drmuruga said:
What about battery? Charged?
Click to expand...
Click to collapse
Yes battery is charged of course. It's just doint the same thing. Turns on, after a while when bootscreen comes it just turns off and white notification led appears, after that nothing.
I tried to flash it with tool using method 2 for like 15 times with "download complete" messages, but still no luck at all. Tried to erase partritions with fastboot, flashing just only recovery, modded recovery etc. but I still cannot access the recovery nor system. I just don't get it why the phone does not boot into recovery if I flash it or boot it straight away, It just only turns off and that's it. nothing more. Only black screen and white led lighting all the time (after a while the phone turns warm).
I have read all the MsmDownloadTool thread in "Mega Unbrick thread" and saw that few people have experienced the very same situation as me, so I was wondering if there is any fix for this? It's so strange that I was just surfing the Web and it just turned off by it self with like static image for miliseconds and after that just black screen.
There should be any fix. I guess that it's just a partition error...
Ok, not good news. I had a little remote session before a while. They says it's already a hardware problem.
AcidNoteZ said:
Since you opened the phone, i think your warranty is gone now.
If the msmdownloadtool didnt help you, there is nothing you can do i think.
Click to expand...
Click to collapse
Pfffft you think manufacturers notice when you take apart phones? Hell I took apart my Xperia Z2 because it was having problems and then glued it back together with cyanoacrylate hahahaha (worst thing to do but wtv) and no one noticed though it was seemless and everything looked perfect
Guys, I've got something for you! Not really the same thing as Naman.
p.s. not saying its original hehehehe keep safe
man i got a very similiar problem but my op3 has a black screen i was also on low battery around 5-15% when my phone went off after i was in twrp
Actually I was on twrp too! Also I have recently noticed that recovery loading speed was far too long than normal one. I'm talking for something about 5-7 minutes after reboot into twrp. So, who knows what did happen. Just made an RMA request. Will see how it goes.
Anyway, I was on stock 7.1.1 and it's just rooted with custom recovery and that's it! Nothing more! Is that just a factory failure or maybe it's caused by drops i have had? Nothing serious for a 4-5 times for a half year. Of course I have used it even in winter when the snowflakes are coming down from the sky and little rain. Btw, these liquid indicators are white, so all safe. ::laugh:
A
makadama said:
man i got a very similiar problem but my op3 has a black screen i was also on low battery around 5-15% when my phone went off after i was in twrp
Click to expand...
Click to collapse
So, unluckily today i find myself here lookin' for help with my phone. I had already took a look on other brick threads, but i can't find an appropriate answer to my problem.
I'm (i was) running lineage-14.1-20170602-nightly, i had ne0zone75's TWRP 3.1.0.0-0, and that's how the brick came in a strange way; i was simply on XDA Labs app browsing the forum, when i received a call. I've answered, and when i shut off the call the phone shut off immediately after. I thought it was a reboot, but keeping pressed the power button didn't switched on the phone anymore. So i've tried to remove the battery and re insert it after some minutes, but the only thing i can get is the screen with the samsung logo that goes all black after 5 seconds. I already had other bricks due some errors of mine in the past, but this time it's really difficult.
1: I can't access recovery mode. Ow, how i wish i could.
2: I can access download mode, but after that i reach the ODIN MODE screen with the details of product binary, KNOX, ecc. the phone shuts off again.
3: If i keep the power button pressed, the phone doesn't starts. It only starts if i replug the battery in, but after some seconds it shuts off again.
4: How could a call as another mess up the whole phone?
5: I didn't installed nothing new from at least a week... yesterday an automatic update of the Play Store took place, but except that nothing has been changed. Nothing of nothing! No settings, no apps...
What could i do? Installing Kies with Samsung drivers could help me flashing a stock rom for example? Because at the moment, there isn't too much that i can do with the phone in this state... I hope this little jewel won't have to become a stone to be thrown away. Any help would be great, and really appreciated. Thanks in advance...
Things has got worse. Now my device doesn't starts at all; no vibrations, no signs of life, nothing. I've tried even to put it for 6 hours in my refrigerator, because i've read that the cold temperature could be helpful to fix some broken contacts on some component, but i'm losing hope 'bout it. I supposed that at this point is something hardware-based and not software, because it's just impossible that a call like an other one could be the cause of this hard brick... The only thing is that if connected to my PC, it is being showed as QHSUSB_LOAD. I'll try some methods that i've seen in other forums, like softwares that tries to fix this, but i think that i'll be forced to buy a new device. Neither an usb-jig could help me to force the download mode if the phone is dead in every aspect... the only thing that i still didn't understood, is if a debrick.img on my SD card (sadly i've read that a microSD class 10 with at least 16 GB is required, and i don't have one) could help somehow on a situation like this one of not. Still no one could advice me with some tip, guys
Edit - feel free to close this thread, I have another phone now