can't start the phone - Micromax Canvas A1

i can't switch on my phone phone. whenever i try to switch on it shows optimizing apps and again switch offs . i installed android one toolkit on my pc but the software does not recognise my device . i need healp

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Hopeless HTC s621

I have my device unlocked already and have done many ROM upgrades before, this time my PC froze half way throught the upgrade. The device turns on and gets stuck on the T-mobile screen. It doesnt connect to active sync i cant even get Dashv2unlock to detect my device. Please help somebody.
from what i've read before about this type of issue (somewhat), try removing the battery and SIM for a few minutes, then replace and reboot and see if active sync recognizes it now.
if this info is no longer valid, I apologize.
I think you need to have your phone in bootloader mode and then flash again. Make sure the phone is off, and while holding down the camera key (to the right of the space key), connect the USB cable to your phone. The tri color bootloader screen should appear on your S620. Now run the upgrade file on your PC again.
Let us know how it goes....
im able to get to the tri color screen but when i start any Rom upgrade it gets to 3 percent and fails. I have also tried the SP-1.11 upgradeonly.exe and also the Dashv2Unlocker that i have paid for. Nothing

[Q] how to fix bricked phone plz help

so my phone r800i xperia play i tried to get cm9 aqnd when it told me to fastboot
reboot the device to cwm it didnt turn on and when i press on button it just makes a buzz and it connects to my comp it like 1 min and the red light flickers while its pluged in to my computer using usb then it pops up unkown device plugged in your pc.then fails to install it help fastboot and flash mode wont turn on.
i asked my cousin who worked with these problems he says you have to do some complex thing on your computer. Any other way i might send it to sony.
it keeps poping up that it cannot recognize my usb plugged in .
Try downloading and running the update service:
http://sony-ericsson-update-service.en.uptodown.com
This should flash your phone back to default (stock) ROM I believe. It worked for me when I deleted /system
Flashtool is much better that SEUS in my opinion. Much more flexible.
When my Play would be rebooting constantly I:
1. Connected it to pc, Let it recognize my device
2. Before it would reboot again, I took the battery out.
3. Entered fastboot mode
4. Flashed new firmware

[Q] One x crashed after OTA Update, Dead?

Hello.
I have HTC ONE X for a long time.
today i suddenly got a notification for update (as far as i remember it was the"heartbleed fix" update).
ive downloaded the update and start the installation.
at the moment i press start the phone turned off and became like a "zombie".
hes not turning on, doesnt show the red led while charging (and also doesnt heat up while charging like it used to).
i tried to connect the phone to my pc but pc doesn't recognize the device, and the phone doen't respond to the connection.
some details on the phone (if you need it): CID_044, the rom was official, official recovery and boot, it was relocked because i did it withot changing anything except the unluck and relock.
i tried to download drivers and re installing them, as well as java.
tried to press power +volume up\down\both.
tried to search for device using adb.
tried to rebbot via fastboot and adb (throught the pc).
all this without any luck.
anyone got anothe suggestions? the phone i completly dead?

LG M320n (X Power 2)

Hi.
Phone completely dead after software downgrade.
It does not even display charging after connecting it to a computer or charger.
However, if I connect the phone to the computer, it can be heard that the device is detected and after a while removed and so it loops endlessly.
I have tried several flashing programs before but none is able to detect the phone.
The phone's S / W is: 801CQNL238447
The phone is not the primary phone, but it would be nice to get it fixed.

A70 stuck in samsung logo and declines port.

I rooted my Galaxy a70 using vbmeta,Twrp and magisk. All was going well. Suddenly my phone turned off and when I press power button its shows download mode .so I tried odin to flash but every time it fails.After many tries I realise that its port are not connecting to pc ,its only charging and my pc also can't detect my phone ..now when I connect the phone to pc its shows samsung logo.its also not showing the battery percentage .
(My pc is ok it have all driver installed and odin works)
Is there anyway to solve.
Thanks.
reboot pc just to be sure.
connect phone and pc
on the phone in download mode screen, hold vol down and power till screen goes blank immediately let go and hold vol up and down to boot back into download mode. the letting go when screen goes blank to holding up and down needs to be fast.
now once back in download mode, is odin showing port number?
also make sure your using odin 3.13.3
if still no go, try uninstalling samsung usb drivers, reboot then reinstall and try the process again.
When I put cable in my phone it directly shows the logo....
Its not showing the battery
I tested my another Samsung phone to be sure that my softwares are working. And it's working but when I put my A70 in. Nothing happened

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