Help about Battery Desync Fix NX

[toupie]

Edit: Solved Already

Please help me with this step.


6. Do 2 full charging cycles (??% -> 100% -> 0% -> 100% -> 0% -> 100%)



I don't know how to properly drain the battery and how to properly charge it to 100% again from the drain.

So what I did is when my switch started going to sleep mode due to 1% battery, I kept on waking it until it shutdown. After shutting down, I kept on booting emuMMC until I couldn't boot it anymore and also not being able to enter hekate too because it means that the battery is 0%.

For charging back to 100%, I inserted the charging cable, and after a minute my switch suddenly entered hekate by its own, so I booted emuMMC and I charged it while my switch is on HOS.



I feel what I did for both draining and charging is wrong, so can you guys tell me how to do it.

After shutdown from 1%, should I enter hekate and drain the battery there?

Should I fully charge it while it's turned-off? Or fully charge it in hekate?

 

[Richard186]

The only thing you can do is let it cycle a few time hoping capacity full get near design level. You can use use the desync fix but you would have to open it up and unplug the battery after use happened to me after using that on a unit battery wasn't showing correctly.

For Desync Fix last week I had used it. I don't know did it correct or not?

* ( I charge my switch 100% with emummc cfw, then I opened app and press x. Until it drain battery and turn off device, show red icon battery, I plug/unplug charge until hekate boot on, I boot to emummc cfw done 2 time cycle, after that I press save, boot to sys cfw and restore it. When finish I boot back emummc cfw. Doing like this is correct step ) .

* Today I want retry use Desync Fix again. Can I doing 3-4time full cycle charge than see it going on?

 

[Hayato213]

For Desync Fix last week I had used it. I don't know did it correct or not?

* ( I charge my switch 100% with emummc cfw, then I opened app and press x. Until it drain battery and turn off device, show red icon battery, I plug/unplug charge until hekate boot on, I boot to emummc cfw done 2 time cycle, after that I press save, boot to sys cfw and restore it. When finish I boot back emummc cfw. Doing like this is correct step ) .

* Today I want retry use Desync Fix again. Can I doing 3-4time full cycle charge than see it going on?

You can try few more charge cycles see if goes back to like 4600.

 

[Richard186]

You can try few more charge cycles see if goes back to like 4600.

This my only press x with Desync Fix nx for reset battery ic cal at first time without finish 2 cycle charge yet. And Both cfw and hekate battery now are show same capacity designed. Like this I need doing more 2 time full cycle charge right? Save it and go restore after that.

 

[Hayato213]

This my only press x with Desync Fix nx for reset battery ic cal at first time without finish 2 cycle charge yet. And Both cfw and hekate battery now are show same capacity designed. Like this I need doing more 2 time full cycle charge right? Save it and go restore after that.

Check the capacity full value in hekate.

 

[Richard186]

Check the capacity full value in hekate.

Check the capacity full value in hekate.

Hekate current show as photo

 

[Hayato213]

Hekate current show as photo

Looks normal now it is okay for capacity full to be slightly higher than capacity design.

 

[Richard186]

Looks normal now it is okay for capacity full to be slightly higher than capacity design.

So need I continue from >0%>100%>0%>100% doing 2 full cycle charge?Desync Fix ns app Save and restore next step? Or just charge it 20% to 100% normal....?

 

[Hayato213]

So need I continue from >0%>100%>0%>100% doing 2 full cycle charge?Desync Fix ns app Save and restore next step? Or just charge it 20% to 100% normal....?

You can leave it as it is no longer need to keep doing it.

 

[Richard186]

You can leave it as it is no longer need to keep doing it.

Thank you for help.

 

[Richard186]

You can leave it as it is no longer need to keep doing it.

I have check capacity design my device show 4659mah, it has problem right? I have see lot comment and post, are see 4667mah,

after full charge now it can play until 2% still not turn off game. Before just 16% it auto turn off.

 

[Hayato213]

I have check capacity design my device show 4659mah, it has problem right? I have see lot comment and post, are see 4667mah,

after full charge now it can play until 2% still not turn off game. Before just 16% it auto turn off.

It is expected around that 4667 number 4659 ain't a big different, actually battery says 4310 mah on it.

 

[jellydoger]

For Desync Fix last week I had used it. I don't know did it correct or not?

* ( I charge my switch 100% with emummc cfw, then I opened app and press x. Until it drain battery and turn off device, show red icon battery, I plug/unplug charge until hekate boot on, I boot to emummc cfw done 2 time cycle, after that I press save, boot to sys cfw and restore it. When finish I boot back emummc cfw. Doing like this is correct step ) .

* Today I want retry use Desync Fix again. Can I doing 3-4time full cycle charge than see it going on?

Hi richard, i also has the same issue

May i know have you fixed it ?

I try to do the same step as yours but when it boot to hekate mine already at 57% ( my switch died at that % , is the thing happen to you too ? ( After recalibrate it died at random % and when hekate auto boot and hos it also start at that last random number)

Really appreciate if you can tell me you step to fix it

 

[NierNinha]

Hi richard, i also has the same issue

May i know have you fixed it ?

I try to do the same step as yours but when it boot to hekate mine already at 57% ( my switch died at that % , is the thing happen to you too ? ( After recalibrate it died at random % and when hekate auto boot and hos it also start at that last random number)

Really appreciate if you can tell me you step to fix it

Im also having the same problem, my capacity full keeps going up as time goes by, it eventually stops but everytime i let it die and charge again it restores the previous % and charge it from there, without fixing the real capacity.

 

[jellydoger]

Im also having the same problem, my capacity full keeps going up as time goes by, it eventually stops but everytime i let it die and charge again it restores the previous % and charge it from there, without fixing the real capacity.

Has you find any solution? Previously i was the reason i try desync because im afraid the battery will remember the lower value as the max

Example i charge to 87% but the ui suddenly change to 100% if i let it go it will start to remember 87% as 100% . And it will get worse if i charge from 100% ( the real 87%) to another lower

 

[NierNinha]

Has you find any solution? Previously i was the reason i try desync because im afraid the battery will remember the lower value as the max

Example i charge to 87% but the ui suddenly change to 100% if i let it go it will start to remember 87% as 100% . And it will get worse if i charge from 100% ( the real 87%) to another lower

No i still havent, as of now im still trying more charge cycles to see if it goes back to normal but every time i try it just restores the previous %, but the battery is lasting as it should, it just turns off suddenly at 11%

 

[Richard186]

Hi richard, i also has the same issue

May i know have you fixed it ?

I try to do the same step as yours but when it boot to hekate mine already at 57% ( my switch died at that % , is the thing happen to you too ? ( After recalibrate it died at random % and when hekate auto boot and hos it also start at that last random number)

Really appreciate if you can tell me you step to fix it

Since August 2025 until today, I was fixed it until today don't have problem for me again.

 

[NierNinha]

Since August 2025 until today, I was fixed it until today don't have problem for me again.

your solution was to press X after the 2 cycles or you just repeated many cycles?

 

[jellydoger]

Since August 2025 until today, I was fixed it until today don't have problem for me again.

Is it okay if you post your latest exact step by step ? Like should we charge first or press X first

And after battery turned off due to low battery when it turned on again after plug unplug should it be at last previous % or 0% since yours turned off at 16%

 

[Richard186]

Is it okay if you post your latest exact step by step ? Like should we charge first or press X first

And after battery turned off due to low battery when it turned on again after plug unplug should it be at last previous % or 0% since yours turned off at 16%

1st charger it 100%, if you stay on emummc open app and press X. Doing 2 time full cycle charge. Open app again press y or b for save. After that boot sysmummc to restore. Done.

 

[NierNinha]

1st charger it 100%, if you stay on emummc open app and press X. Doing 2 time full cycle charge. Open app again press y or b for save. After that boot sysmummc to restore. Done.

have you checked recently if values are now correct after this? idk if its just bc i keep charging to see if it stabilizes and capacity full keeps going up sometimes or its really just like that