Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

Lenovo PhonesK8 [XT1902] Smartphones
All Forum Topics
Options

4 Posts

06-15-2018

India

7 Signins

75 Page Views

  • Posts: 4
  • Registered: ‎06-15-2018
  • Location: India
  • Views: 75
  • Message 1 of 9

K8 note auto restart

2019-05-25, 18:12 PM

i have bought the k8 note mobile as soon as it has launched . i love the mobile as it has no problem for the past 1 and half years. last week my mobile was getting restarted automatically . i cant able to do anything. i have bought to the service centre they itself dont know what is the problem . simply telling motherboard issue. there is no way of getting motherboard issue in this mobile. it is surely of software issue. many people has the same problem. so kindly do the neccessary things to solve the issue. i am still believing i can get my k8 note back

Reply
Options

2138 Posts

05-25-2016

India

2463 Signins

28049 Page Views

  • Posts: 2138
  • Registered: ‎05-25-2016
  • Location: India
  • Views: 28049
  • Message 2 of 9

Re: K8 note auto restart

2019-05-26, 5:32 AM
Hey,

Have you tried resetting the device?
Regards,
Amal

If I helped you HIT KUDOS


If I solved Your issue Mark it as Solution                                                                                               


Reply
Options

4 Posts

06-15-2018

India

7 Signins

75 Page Views

  • Posts: 4
  • Registered: ‎06-15-2018
  • Location: India
  • Views: 75
  • Message 3 of 9

Re: K8 note auto restart

2019-05-27, 3:20 AM

I have tried resetting, Mobile recovery even I have reached for authorised service centre . They itself don't know what problem is that.

Reply
Options

2138 Posts

05-25-2016

India

2463 Signins

28049 Page Views

  • Posts: 2138
  • Registered: ‎05-25-2016
  • Location: India
  • Views: 28049
  • Message 4 of 9

Re: K8 note auto restart

2019-05-27, 4:22 AM

 wrote:

I have tried resetting, Mobile recovery even I have reached for authorised service centre . They itself don't know what problem is that.


Ok, thats bad. I could be a firmware or hardware issue. If it is a firmware issue resetting will not work and same with hardware. You can demand them to flash new firmware . Hardware issue could range from short circuit to damaged components. In that case you have to replace the motherboard. 

Regards,
Amal

If I helped you HIT KUDOS


If I solved Your issue Mark it as Solution                                                                                               


Reply
Options

72 Posts

08-28-2019

United States of America

77 Signins

669 Page Views

  • Posts: 72
  • Registered: ‎08-28-2019
  • Location: United States of America
  • Views: 669
  • Message 5 of 9

Re: K8 note auto restart - SOLVED BAKE THE MOTHERBOARD

2019-08-29, 5:11 AM
SOLVED SOLVED SOLVED
SUCCESS SUCCESS SUCCESS
IT IS 100% WORKING NOW, THE PROBLEM OF RESTARTING AND BOOT LOOP HAS GONE COMPLETELY!
To all of my fellow Lenovo K8 note users if you are facing with the problem of boot loop, freezing and constant restarting of your phone then its the problem with the motherboard and not the Oreo update. Yesterday i was able to used the phone temporarily by cooling it in the refrigerator that gave me the hint that there is some loose connection or dry solder due to which the phone was not working. Mainly this loose connection must have happened due to over heating of Media Tek X23 CPU. 
So i decided to do the re-balding soldering of the motherboard. Now the right way to do it is using the Hot Air Station, but if you don't have it then you can even bake the motherboard in oven. Follow the steps below
1) Carefully open the back and disconnect the flex cables for Battery, volume button, LCD and Daughter USB charge boards (Watch some YouTube Videos Online)
2) Unscrew the Motherboard and take it out from the casing. 
3) Remove the metal shields covering the CPU, there will be 4 shields but only 2 of them are removable, the other 2 are soldered to the motherboard so don't try to remove it if you don't have Hot Air Station.
4) Heat the IC underneath the shields with Hot Air Station, If you don't have Hot Air station then put the mother board on a ceramic or non conductive plate and then place it inside the Oven for Baking. !!!! WARNING DO NOT MICROWAVE IT !!!! You need to use the setting of your Oven similar to what you would use for Baking breads.
5) The Oven should be Pre-heated to 230 Celsius before you put the motherboard.
6) Set the timer to 10 to 15 minutes and let it bake 
7) Once the baking time is over, then let the Motherboard cool inside the oven until is cool to touch.
8) Put Heat sink compound on top of the IC/CPU and Metal Shield plates
9) Reassemble everything and test if it works.
10) Don't forget to give my reply a like if it works for you, All the Best!!!
I have attached some photos of the motherboard with some instructions on Lenovo Forum, Go to page 45 on the below link
Reply
Options

3 Posts

10-12-2020

India

2 Signins

15 Page Views

  • Posts: 3
  • Registered: ‎10-12-2020
  • Location: India
  • Views: 15
  • Message 6 of 9

Lenovo K8 Note Model XT1902-3

2020-10-12, 11:10 AM

The Phone restart when I trying to download apps from google play store or open YouTube any of application then Phone restarted then I flashed lenovo firmware version of uploaded photo here then phone not turning on  shows please download signed image(md1img-verified.img) or disable verified boot Please help me 

Reply
Options

2138 Posts

05-25-2016

India

2463 Signins

28049 Page Views

  • Posts: 2138
  • Registered: ‎05-25-2016
  • Location: India
  • Views: 28049
  • Message 7 of 9

Lenovo K8 Note Model XT1902-3

2020-10-12, 11:30 AM
Hey Zack, Have you tried hard resetting the device?
Regards,
Amal

If I helped you HIT KUDOS


If I solved Your issue Mark it as Solution                                                                                               


Reply
Options

3 Posts

10-12-2020

India

2 Signins

15 Page Views

  • Posts: 3
  • Registered: ‎10-12-2020
  • Location: India
  • Views: 15
  • Message 8 of 9

Lenovo K8 Note Model XT1902-3

2020-10-13, 6:27 AM
No
Reply
Options

14293 Posts

03-05-2018

United States of America

1313 Signins

178190 Page Views

  • Posts: 14293
  • Registered: ‎03-05-2018
  • Location: United States of America
  • Views: 178190
  • Message 9 of 9

Re:K8 note auto restart

2020-10-14, 20:44 PM

Hi Zack4U,

 

 I would first suggest checking in safe mode. See if you can duplicate this behavior just by using stock apps. 

 

To Enable Safe Mode
1. Press and hold the Power button until Power off comes up on the screen.
2. Touch and HOLD Power off on the screen until reboot to safe mode appears.
Just turn off and on the phone to boot back to normal mode.

 

Please let me know. Thanks.

 

Best regards,
Rich
Motorola-Lenovo Support



Did someone help you today? Click the thumbs up button to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

We value your opinion. Read More

Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms