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Lenovo PhonesK8 [XT1902] Smartphones
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3 Posts

10-26-2018

India

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop

2019-09-13, 19:14 PM

My Lenovo K8 note starts restarting every 2mins when i off the screen or lock the screen. If the screen is on then there is no problem at all. Ive tried everything from the self-help guide except for hard-reset. This happens in the safe mode as well. The mobile gets heated a lot due to this and battery also drains off due to continuous restarts every second minute. 

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72 Posts

08-28-2019

United States of America

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop

2019-09-14, 2:51 AM

Keep in refrigerator for 10 mins and then remove and see if you are able to use the phone for some time without restarting. If cooling the phone for sometime solves the problem then go for motherboard baking method, it will 100% resolve your issue permanently untill the remainder life of this Lenovo K8 note or till you decide to keep it.

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7 Posts

09-13-2019

India

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 4:57 AM

Heyy !!

Thanks for helping All.

 

I understood the THERMAL PASTE SCENARIO.

 

Can i use hair dryer instead of hot air station ??

 

AND After 

Downgrading to nougat now i am able to use it.

But sometimes the problem is still there, phone restarts automatically and goes into the bootloop.

 

I am Confused, what to do ?

 

Or if i can use hair dryer ? Help Me Out !

 

Thanks.

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72 Posts

08-28-2019

United States of America

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 5:35 AM

You can try using the hair dryer but I am not sure if it can produce enough heat of about 250-300 Celcuis for the solder to melt. I wouldn't be confident about  donthe fixe by hair dryer because if it is  just temporary then you will again have to go through pains of opening the phone which is very inconvenient. I suggest to do this fix for once but with solution forever.

 

Downgrading to Nougat is not the solution because even I tired that and it was still having the problem. This is not a software issue but the hardware problem inside the motherboard. After baking the board I installed the latest Orea 27.43.20 and it's been more than 15 days now and not even once the phone has restarted or hanged or went into a boot loop.

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7 Posts

09-13-2019

India

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 5:44 AM

Ok,, 

Now baking motherboard is good or hot air station ??

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72 Posts

08-28-2019

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 6:37 AM

Hot Air station is what professionals like your local mobile repair shops will use, but not everyone will be having the hot air station as it's a costly equipment. Big manufacturers like Lenovo and Samsung will have a rebalding machine which is similar to Oven where they can put number if circuits together and get the solder reflow. It is also cost effective and time and labour saving.  mostly everyone has the oven at home so you can try simulating same. Remember not to touch or flip the board when it's hot not just that it can burn your hands but it can also shift the components when the solder is in molten state and short the circuit board completely.

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7 Posts

09-13-2019

India

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 14:50 PM

BIG THANKS.

 

SO NOW, 

BAKING MOTHERBOARD IN OVEN METHOD 

 HOW TO PLACE MOTHERBOARD INSIDE IT

SHOULD I USE A STEEL PLATE OR SOMETHING ELSE TO HAVE MOTHERBOARD ON IT THEN TO THE OVEN.

 

 

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72 Posts

08-28-2019

United States of America

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 18:15 PM

No metal plates, use a glass or a ceramic only.

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7 Posts

09-13-2019

India

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 18:20 PM

I do not have ceramic plates . now?

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72 Posts

08-28-2019

United States of America

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Re: Lenovo K8 Note - Auto Restart issue/Boot Loop (SOLVED - Bake the Motherboard inside the Oven)

2019-09-14, 19:18 PM

I SAID GLASS OR CERAMIC

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