[Cardoso]

Emmyoueffsee wrote:

It comes up with a EFI shell version 2.50 screen. Cannot find required map name. What are my options from here guys to get it working again, as I’m pretty clueless Cheers

I have that sometimes without apparent reason. Turn on the book and press F7 to launch the manual boot. Should be 2/3 options there one of which is the emmc. If not, keep on rebooting or off & on until that option appears on the menu. After just choose it and boot it. Good luck.

[Cardoso]

Nick wrote:

Yeah it really sucks that the battery is so bad, and the whole laptop is good for traveling etc…if it had a usb-c i could charge it with my powerbank… hmmm so i should order 2 of these right? https://es.aliexpress.com/item/L552-3-7V-6000mAH-4212078-PLIB-Polymer-lithium-ion-Li-ion-battery-LG-cell-for/32531318879.html?shortkey=b6JBfMny&addresstype=600 These are the ones you have installed also?

I’ve ordered this one https://es.aliexpress.com/item/V046-3-8V-3-7V-6600mAh-4412180-PLIB-Polymer-lithium-ion-Li-ion-battery-for/32376733840.html?spm=a2g0s.9042311.0.0.4da663c0KfluUz which are the same but with 3.8V instead of 3.7V

[Cardoso]

My battery while pc off  discharges around 3/4% that’s for a period of 10 hours. Definitely get a refund if you can and order 2 new batteries. I got my ezbook  from geekbuying and could not get anything back from them apart from sending it to China for repair which I didn’t.

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[Cardoso]

After 3 complete charges getting 8h with new battery. Excellent results.

Thank you all for the help and advise.

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[Cardoso]

Still got 1% with 6h05m of use. Not bad.

0% and still going. Working on fumes… Obviously the battery isn’t calibrated.

Edit: @Rac4 After installing battery the two wires soldered to the board got loose (newbie soldering).

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[Cardoso]

I managed to get 5 hours of use with 100% of brightness first half and then 75%. Played 3 hours of movies, web browsing and other tasks. I’m happy with new batteries, worth the money.

Now going to charge it and turn down the brightness to 50% as normal for me and see how far it goes.

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[Cardoso]

@chupa thats what i did.

All sorted and working without charger plugged in. I’m charging it now then I’ll do some tests with battery bar and post it here.

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[Cardoso]

Rac4 wrote:

Cardoso : Did you ordered the same battery as euplio? Use a multimeter to see what voltage runs between the colors. Mesure all the possibilities and send it. Maybe we’ll be able to help!

Same supplier but its 3.8v https://www.aliexpress.com/snapshot/0.html?spm=a2g0s.9042647.6.2.5a6663c0Ug76an&orderId=93258280708956&productId=32376733840

Sorted…black and red 3.88v. Now my experience: Soldered all wires (not really), install battery, switched on ezbook and nothing. Plugged in charger, switch on and it works. Removed the charger and it goes off!!! Eventually decided to open the back and check the wiring and sure enough the 2 wires were loose from the board. Fvcking soldering. Back to soldering board and hope it didn’t burn any components.

@Rac4 Thanks for reply.

 

 

[Cardoso]

Mine just arrived but they have 3 wires (see photos).

Should I solder the white wire to the plug that connects to the EZ board or should I just ignore it? Need help

Thanks

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[Cardoso]

Still waiting for mine. I’ll post here once all done.

Meanwhile I’ve received a voltmeter and decide to measure the batteries (they have been removed from ezbook for over a month). See the pics for results. Maybe someone can shed some light on the results because I don’t understand.

Remember my ezbook would not stay on, even for a second, if the power supply was unplugged.

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[Cardoso]

euplio wrote:

I bought 2 of these https://www.aliexpress.com/item/L552-3-7V-6000mAH-4212078-PLIB-Polymer-lithium-ion-Li-ion-battery-LG-cell-for/32531318879.html?spm=a2g0s.9042311.0.0.72184c4dxm2CGP Size is right and capacity is better than oem

Many thanks. Our battery shouldn’t it be 3.8V like this https://es.aliexpress.com/store/product/V020-3-8V-3-7V-6000mAH-4012680-PLIB-Polymer-lithium-ion-Li-ion-battery-LG/200272_32376733840.html?spm=a219c.12010612.8148356.11.10085b056XoLWJ. This one is exactly the same but 3.8v instead of 3.7v.

[Cardoso]

Today I’ve decided to take out the battery of my 3 pro and to no surprise one of the batteries is completely flat (see photo).

The notebook’s working without the battery.

Advise for a compatible battery would be appreciated.

Thanks

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[Cardoso]

rajko wrote:

Greeting! I’m my ezbook 3 pro bought via https://www.geekbuying.com/ with a stocbook in HonKong. I have no guarantee, I have not got an account, so I do not have the opportunity to return from America to Hog Kong.

Mine was also bought in geekbuying. i’ve already asked an address to send it back to repair.

[Cardoso]

rajko wrote:

Guys, greetings. I have the same problem with the battery, it fills up nicely up to 100% and goes up to 50% for an unconnected time and extinguishes without warning. I want to note the laptop is 2 months old. I ask for help if someone knows where I can order a new battery for jumper ezbook 3 pro. Thank you!

Mine doing the same. Now is lasting just over 1 hour. where did you get your ezbook?

[Cardoso]

rajko wrote:

Problem with my jumper ezbook 3 pro. It worked well for two months and now the battery hardly lasts 30 minutes. Does anyone know the solution? Thank you.

Mine is 2 weeks old and gets to around 50% and shuts down. Last less than 2 hours most of the time in idle.

[Author]

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