Trying to restore my Micromax canvas Knight - Micromax Canvas Knight Guides, News, & Discussion

Hello all,
Though I have read some of the posts in the forum for things like rooting, recovery etc, this is my first post. I need guidance to bring back my Knight in working condition.
A little background:
My phone fell down and the screen got broken. I myself tried changing the screen and I was successful in doing so but my happiness lasted only for some hours. After checking for some two three times, when I switched on, there was no sound from the phone will booting. So, again I disassembled the phone and tried to assemble it but this time there was no display as well as sound. I can see some change in the screen when the power button is pressed, like a little brightness, but nothing happens afterwards. I took it to the service center and initially they said I need to change the battery and the main FPC cable needs to be changed which will cost around 2.5K. I agreed to that, but later they called me up and said that the screen too needs to be changed and in total it would cost 6K. I told them that the screen is new and brought back the phone without doing any repair.
Now I want to troubleshoot and bring back the phone to life and I need guidance.
The current status of my phone is:
1. On connecting the charger the red LED lights up, but the charging sign does not show up.
2. There is slight change in the brightness on the screen when I press the power button. Noting happens after that.
What should be the methodology for troubleshooting?
Thanks in advance.

Related

Phone always has a white screen, but seems to work

Hi Forum,
I got a dash with the WM 6.1 from this great forum.
Somehow since yesterday the screen turned completely white
There was no physical impact on the phone what so ever...
When I turn the phone on, the screen is all the time white... but the phone is still working since the alarm is still ringing....
I've tried already the following:
- took the battery out for over 6 hours and tried again
- with and without sim/sd card
- to reset the phone but with no success since I cant see anything (2 softbuttons, powerbutton etc.)
- putting WM 6.5 with no success with the Error 270
- pressing and holding any button
- tipping the jagger for 3 times
- and finally hitting the phone
All these steps didnt use me anything...
I'd be gratefull for any sudgestions
Maybe the screen is just damaged and its not because of the software...
thanks a lot,
RedDot69
Hard-reset will be best option and can be done blind since it's button sequence as known then green key, i knopw that peeps have done it blind and with you spending enough time it will be sorted... The other option is bootloader and flash your stock ROM as won't get an error 270
thanks for the fast reply.
ok about the hard reset.
I hold both buttons beside green and red button then while holding i turn on the phone (power button more then 3 sec.) after it turned on i let go of the buttons and press the green button (I pressed it a several times). What after that?? will everything happen automatically??
if yes then the hard reset wont help since its still white...
unfortunately I dont have the original ROM anymore (WM5).
Do you know where I can get it??
Ok I guess I managed to hard reset this thing.
Unfortunately with no success
can anyone help?
will the problem be gone if I change the display?
RedDot69 said:
Ok I guess I managed to hard reset this thing.
Unfortunately with no success
can anyone help?
will the problem be gone if I change the display?
Click to expand...
Click to collapse
Can you sync with your PC? That's something that you haven't state in your original post.
From what you have posted in the first post, looks to me like your phone has suffered water/moisture damage. Classic white screen, nothing shows, display turns off after default timeout seconds, phone functions smoothly. For this to occur, you dont have to dunk the phone in water, phone in pocket when exposed to light rain, snow will do it.
If this is the case, the first thing you can do to salvage the phone is to remove the battery, otherwise the charge will short circuit more, leading to irreparable damage.
Second thing, try and keep it open for 24 hours or more and try ONCE more, just once, if the moisture has been evaporated. If not, remove battery again.
Next you will need to find a service center where they will dismantle the phone and physically air dry the PCB, and hopefully if it hasnt already shorted, it will come back to life.
The cost for this could vary from minimal to astronomical, depending upon which country you are in.
Do not take my words for granted, do a google for phone water damage, find out if those are your exact symptoms.
All the best.
gmaniac2008 said:
Can you sync with your PC? That's something that you haven't state in your original post.
Click to expand...
Click to collapse
yes I can. I already saved the contact list The phone is perfectly working beside the white display...
@ ccpraveen
I really dont think thats the case. Since I was sleeping on the couch, the phone's alarm went of like at 11 and it was all ok, then 30 min later the screen was all white
And the night before I left the phone at home...
Bringing the phone to some service center is out of question, since I live in Germany... If possible, I'd have to repair it my self...
By the way the Display time out works too... Somehow I got the feeling that it wouldnt use me anything to change the display
please, can no one help
RedDot69 said:
please, can no one help
Click to expand...
Click to collapse
install this on your computer http://www.mymobiler.com/
it will silently install on your s620 when it syncs with activesync and you will be able to view your screen from your computer monitor
if everything works buy a new lcd from ebay and replace it because its probably broken
--- sorry didnt want to post ---
Please skip this reply and read the next (cant delete this anymore)
ducamie said:
install this on your computer http://www.mymobiler.com/
it will silently install on your s620 when it syncs with activesync and you will be able to view your screen from your computer monitor
if everything works buy a new lcd from ebay and replace it because its probably broken
Click to expand...
Click to collapse
thanks a lot for the very usefull link
I installed the programm and I can see my display on my monitor
Then I hard reseted the phone
Installed WM6.5 from the forum successfully
But the display is still all white
If anybody thinks that the problems any way not from the display please do tell.
RedDot69 said:
thanks a lot for the very usefull link
I installed the programm and I can see my display on my monitor
Then I hard reseted the phone
Installed WM6.5 from the forum successfully
But the display is still all white
If anybody thinks that the problems any way not from the display please do tell.
Click to expand...
Click to collapse
My impression is that you have a hardware problem, maybe your screen has something loose. If you state that you will fix it by yourself, you can read the sticky on how to take apart your dash.
There are also power management settings that will turn the display white, however if it is white all the time, then it's probably hardware. Loose connections does sound possible. I'd check that first
You can try the following:
*- COMPLETELY disassemble your phone.
*- Take the PCBs apart on a table or something.
Then... take an hairdryer!!!
You have to dry your PCBs: take a PCB in your hand and do the work.
Be aware of not using TOO HOT air, or you'll melt all.
If it doesn't work, try to dry your LCD.
Doesn't work?
Okay, then the only 2 possible fixes are:
*- Replace the LCD Flex Cable if not integrated in the LCD.
*- Replace the LCD.
Hope that you'll get your phone fixed and running

Red screen of death

Well, something very odd just happened to my samsung focus (at&t) when I rebooted it. After the samsung screen shows, a pure red screen shows up for about 2 seconds and then it goes black. when I push the power button (or hold it) it simply goes back to the red screen again! Naturally, I thought to battery pull which simply put it back onto the samsung screen only to then go back to the red screen again.
I then thought 'maybe this is some sort of glitched state that it is in (it does seem to be stable in this state of redness, the capacitive buttons seem to give haptic feedback when pressed and the power button turns the screen off and on) so I decided to battery pull again and then connect it to my pc to see if it would detect that the phone was in this special "mode". after the battery pull, the phone booted back as normal??? It had about 89% power according to the battery percentage app when I rebooted??
it is fine now, but WTF was that anyway??
EDIT: ok, now it gets weirder, I got it to go into this state and quickly connected my usb cable to the computer and... zune pops up and it goes to that screen with the phone wanting to sync, but the phone being grayed out?? when I dragged a picture to my device, IT STARTED TO SYNC WITH DEVICE! It didn't even get an error and, after a successful reboot to the actual phone, THE PICTURE WAS ON MY DEVICE??? oh, and btw, it boots insainly fast when it is in redscreen mode...
i am now seriously confused beyond all hope
happened to my omnia 7 yesterday.
Just as well since i was going to flash the new rom anyways (and i did.. hasnt happened yet)
I think...it happened when i took my sim out.. i put it in and dont think it happened.
Might have to do with samsung. Other than Dell, Samsung has proven to be the weakest OEM in terms of hardware/software/firmware reliability.
I had this after I tried the 16Bit gradient hack. Setting the values back to 16 solve the red screen problem.
Wow... Ur right! Thanks for the fix =D
Sent from my mailbox
it is related to the 16 bit banding reg hack. It has been discussed/mentioned in that thread several times...
Has happened to me 3 or 4 times in the last month, ever since I changed the values to fix the banding on my Samsung Focus.
Just yank the battery and restart, hasn't been a continuous problem for me, and definitely a small trade-off to get rid of banding, IMO.
Same over here
Now that you mention it. I have the same RSOD problem with my Omnia 7 after the 32 colour bit hack. In my case it will happen after I have switch the phone off for the night and switch it back on in the morning. It's fine when the phone is switched off and on again.

[q] screen is glitchy after dropping!

Two days ago, my T-Mobile Samsung Galaxy S3 dropped out of my coat pocket as i was running for the bus. I picked it up and saw the screen was cracked along the top left and bottom left hand side. Everything was working for the past two days and i figured i'll just wait till Christmas to get a new phone. This morning i took my phone off the charger and turned it on. The Samsung logo flashed, and then the boot animation for Slimrom (the custom rom i'm currently running on) flashed for about a second but then the screen went black. I did a battery pull but the weird thing is whenever i put my battery back in, even without touching the power button, it boots up by itself but then the screen goes black again. I can access TWRP and download mode but they both go black after a few seconds as well. I was able to successfully turn on my phone and have it fully function for about 15 minutes after putting it back on the charger, but it quickly blacked out again. It also keeps randomly booting up by itself which is weird. Im guessing this is a problem with the screen itself, but could it be a software issue because the device keeps booting up by itself? If it is the screen, will i have to buy a new one or is it not worth it? I've also tried using a different battery and i have the same issue so it can't be that. Any help is appreciated!
Sounds like an issue with the power button, it probably got stuck somehow either when you dropped it, or after you dropped it. Do a simple search for power button and you will find ways to fix it!
Holy crap i didn't even think of that! It makes total sense since every time i even tap my power button, even for just a second, it turns on. I've read around that clearing the cache or a factory reset could work. Is this true?
Unlikely, unless it's a software issue but it's always a possibility. Slam the phone against something to try to get the power button back into place, or open it up and try to see if you can fix it yourself, or replace it
The problem seems to be gone. I haven't had any issues for two days now. All i did was press the power button really hard multiple times. Thanks for you help man!

Phone working but screen black

Hello everyone,
I have since the first time an LG G3 (D855) that I root and that works very well.
Recently I bought a new one from a friend for my girlfriend.
He never root it, he reset it and sent it to me by mail.
At the reception, I turn on the phone and there, I have the LED lights, sound start but nothing on the screen.
It reacts when I put the finger on the screen so the touch sensor works.
I try a restart and battery removal but nothing better.
The screen has no shock but I told myself that perhaps during the trip he took a bad cut.
I hope it's just a miswired table, so I dismounted to check, but still nothing.
ThenI try something, I disconnect my phone too and I swapped motherboards.
And then the screen with my card in it work.
While my screen with the motherboards of the phone I just bought stay blank.
So the screen is not broken, perhaps it was a install problem.
So I use LG Flash Tool to reinstall the original rom (following a tutorial )
Everything goes well and ends without worries.
But that didnt change anything, the screen is still black.
Do you have an idea ?
Thank you in advance for your assistance and sorry for my bad english
I just realized that if I strongly illuminates the screen I can see that it works.
It' like brightness was at zero.
It's not a screen problem because when I plug it to the other motherboard brightness is ok.
Someone had this issue?
Same problem here
So I'm having the same problem at the moment, but this is the 2nd time that this has happened to me. Last time. I fixed it by changing charger. It worked for like 2-3 month and then I switched again and the problem came back. I suggest you try a few charges. It took around a week before it got fixed.
Hope it'll work for you.
BTW it was a Nokia charger
Black screen G2 after some seconds even during boot...
EtreRe said:
I just realized that if I strongly illuminates the screen I can see that it works.
It' like brightness was at zero.
It's not a screen problem because when I plug it to the other motherboard brightness is ok.
Someone had this issue?
Click to expand...
Click to collapse
Exactly the same problem on my LG G2.
It often go to black screen, but it's not totally OFF. Touch work, and the screen the same, i noticed using a torch that the brightness when to something like zero, but if i increase the level, it stay dark. Only press power button sometimes come back, but few second later... Dark screen again.
It happens everywhere during boot, in home, in lockscreen, in TWRP.
I tried:
- Change rom
- Flash stock firmware...
- Totally switched off for 2 months
- Detach and reattach the screen
- Test proximity sensor in hidden menu
Nothing worked.
If anyone has an idea...

Black Screen

When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Are you able to get to the bootloader? by pressing volume + and power at the same time. It may be worth trying to flash stock also. I am no expert its just what I would try.
MrPureskill said:
When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Click to expand...
Click to collapse
try using spflash all format + download flash stock rom
MrPureskill said:
When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Click to expand...
Click to collapse
look here and flash stock rom again
http://forum.xda-developers.com/elephone-p8000/help/how-to-guideline-install-mtk-drivers-t3334698
Hello there. I have the same problem, phone suddenly stopped to show anything on the screen, it is comleptely black. Tried to reflash few original roms, without a succsess. Replacing lcd did also not solved the problem. Did anyone find a solution?
Thanx
Did you try to format + reflash using spflash? Check out my video walk thru.
https://youtu.be/rzKll-HG6rQ
Sent from my p8000 using Tapatalk
Of course I did. But at no avail. Today, I found out, that the new screen is partially working. I can see very dark picture, it means, I have no back light. Tried to set it up from engineers mode, but no luck.
So the new screen is on, but without back light, and the phone heats pretty much in the top area.
storm525 said:
Of course I did. But at no avail. Today, I found out, that the new svreen is partialy working. I can see very dark picture, it means, I have no backlight. Tried to set it up from engineers mide, but no luck.
So the new screen is on, but without bacjlight, ans the phone heats pretty much in the top area.
Click to expand...
Click to collapse
If so. Try to pull down the statusbar and swipe a bit under the statusbar line, in the top of the screen from left to right, with some luck you will tap the brightness switcher
Gesendet von meinem Metal mit Tapatalk
I can connect to the phone through Vysor, and when I change the brightness level there, there is no change at all. The Phone does not react to any settings change at all.
Tried eragon rom, but still no change....
storm525 said:
Hello there. I have the same problem, phone suddenly stopped to show anything on the screen, it is comleptely black. Tried to reflash few original roms, without a succsess. Replacing lcd did also not solved the problem. Did anyone find a solution?
Thanx
Click to expand...
Click to collapse
Better hope you still have your garantie, because theres legit no way to restore it. You just have to send it back for it to get fixed. This happened to me once and yesterday twice. sadly I am to dissapointed from this. I am never buying an Elephone again ! PS bro it isnt worth sending this hell of a **** peace back. It costs and the blackscreen thing is gonna happen again in 6-8 months. SO go out there and buy yourself a real phone not this bull****. I have to do the same rn.
P8000 unrespnosive Fix
MrPureskill said:
When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Click to expand...
Click to collapse
Just happened to me with my 3 year old phone. Left overnight with enough charge. Pressed the side button and nothing - held it down to restart and then complete blank.
Repalced the battery about 1 month ago with one from AliExpress for £5.
So using the kit provided with the battery or a watchmakers screwdriver - undo the 12 tiny screws and remove the white surround and then the inner back with the phone's number on it. Next disconnect the battery socket but be careful as it is tiny - use a torch and magnifier if vision not good. Remove the sim card. Wait 10 minutes - did this with the blue light flashing - it stopped finally on disconnection.
Put it all back together and hey presto fully working phone

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