Jumper Ezbook 3 Pro-dead, power light and screen don't work,charging light work

[Chupa]

Welcome to the long line of dead Jumpers you will find here.

We hold memorial services weekly.

Sometimes it helps to put a big hammer next to the Jumper. open it up, disconnect the battery for the day tell him if he does not boot the hammer awaits him.

Next day plug in battery, plug in power, turn on.

Use hammer at your discretion.

Need Help?
1981 soldered my first Sinclair computer 1K, tapedeck * 1984 build and sold IBM clones 8Mhz, 512K, 20MB HDD * 2018 messing with ultrabooks

[I Hard]

Did you mess with BIOS? It comes with a generic bios so you must not touch any settings.

 

To reset bios, remove batteries, wait for 1 hour, press power button a few times, then reinsert batteries

[szymonambrooziak]

Do you think that this is a BIOS problem? The computer does not start up or respond to anything except the charging light on the side of the housing when the cable is connected. I removed the batteries for 15-20 minutes but nothing helped. I have seen posts before, that there is no image displayed, but the computer was on and the computer’s light was on, and nothing at all. It does not react to anything except the landing lights.

[G]

<p style=”text-align: left;”>Sounds like the motherboard has died :(</p>

[Chupa]

for some reason after reading of the lemming like deaths of the Jumpers, Freddie Mercury comes to mind.

https://youtu.be/NVIbCvfkO3E

Need Help?
1981 soldered my first Sinclair computer 1K, tapedeck * 1984 build and sold IBM clones 8Mhz, 512K, 20MB HDD * 2018 messing with ultrabooks

[szymonambrooziak]

Guys, an ezbook after a few days of restoring. I do not know how this happened. On Wednesday I unplugged the batteries and on Thursday I plugged in but it still did not work. Today it still did not work, but after knocking it down from the bottom it suddenly turned on. As it happened, I do not know. Maybe you have any ideas?

[szymonambrooziak]

Pic

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[Chupa]

reminds me of the old tv´s what when not worked always got a smack on some corner until they worked again.

Only one thing to do, open carefully and start wiggling cable by cable and see when it turns off again. might be a contact problem I would carefully  and with a magnifying glass check  the way from the plug to the battery and then check the keyboard cable, because this is where you on off switch is.

Mine is only an on switch, after the 2nd time pressing delete and hitting power off I disabled it in the power settings.

Need Help?
1981 soldered my first Sinclair computer 1K, tapedeck * 1984 build and sold IBM clones 8Mhz, 512K, 20MB HDD * 2018 messing with ultrabooks

[Jango]

Is there any solution already? I have a completely new Jumper EZBook 3 and managed to power it on once or twice already, but now it doesnt work again. I press on-button and just blue light blinks for a second. Any ideas how to get it running?

[Chupa]

1. if it is new, talk to the dealer, shoot a video of the not working pc and ask for a solution.
2. If it is new and you did not mess with it, it might be a defective unit, send it back.
3. open up, disconnect all cables and then carefully reconnect.
4. blame chris for showing you  working unit in his test and yours behaves not the same way
5. blame yourself for not checking the forum before buying and noticing that the new jumpers are having a ton of problems. (see my post about stop buying jumpers (link below)

I would go with 1-2 first and then if no sticker blocks the screws with option 3

jumper has changed the 3 pro 7 times in less than a year while the 3s what works well is still unchanged

Need Help?
1981 soldered my first Sinclair computer 1K, tapedeck * 1984 build and sold IBM clones 8Mhz, 512K, 20MB HDD * 2018 messing with ultrabooks

[Jango]

Hi Chupa,

thanks for your reply. I did not mess with the laptop, in fact I didnt do anything with it so far, not even installed Skype or something. Was in contact with Gearbest already, they only could offer me to send it back to China or Spain on my own shipping costs (not that cheap). There is no sticker on the back, but I dont really wanna touch the inside parts and/or cables. I will try to get some help at a computer repairshop back in Austria. Do you have any idea what might be the standard cause of these problems? Really just weak cablework, or a defective power unit or so?

Regards, Jango

[Chupa]

no, but Jumper quality is getting really bad now.

they are dropping like flies.

Send back try Teclast maybe it is better.
if you used paypal with gearbest the you get some money for return shipping from paypal.

Need Help?
1981 soldered my first Sinclair computer 1K, tapedeck * 1984 build and sold IBM clones 8Mhz, 512K, 20MB HDD * 2018 messing with ultrabooks

[rajko]

<span class=”goog-text-highlight”>Tražim pomoć ako mi neko može pomoći. </span><span>Nakon što sam zamenio bateriju, moj ebook 3 pro nije želio puniti akumulator dobro, pokušao sam da resetujem bateriju tri puta, napunio sam ga do maksimuma, a zatim isprazni do nekih 5%, a potom i moj ezbook 3 pro nije želeo ni sa punjačem. </span><span>Nastavljam pritiskom na dugme za napajanje 15 sekundi, plavo svetlo samo treperi i postoji kraj. </span><span>Da li mi neko može pomoći na bilo koji način?</span>

[Chupa]

<span id=”result_box” class=”” lang=”en”><span class=””>I’m looking for help if someone can help me.</span> <span class=””>After I replaced the battery, my ebook 3 pro did not want to charge the battery well, I tried to reset the battery three times, I filled it up to the maximum, then empty up to some 5%, and then my ezbook 3 pro did not even want with a charger</span> <span class=””>.</span>
<span class=””>I continue pressing the power button for 15 seconds, the blue light only flashes and there is a end.</span>
<span class=””>Can someone help me in any way?</span></span>

<span id=”result_box” class=”” lang=”bs”>kako i sa čime ste zamenili bateriju?
Slike?
<span class=””>Mislim da ste uradili nešto pogrešno, ali morate nam reći šta ste uradili tačno.</span></span>

how and with what did you replace the battery?
Pictures?
I think you did something wrong, but you need to tell us what you did exactly.

 

Need Help?
1981 soldered my first Sinclair computer 1K, tapedeck * 1984 build and sold IBM clones 8Mhz, 512K, 20MB HDD * 2018 messing with ultrabooks

[Rac4]

Hi Everyone,

I was performing a few readings on my EZbook 3 pro battery, because of the frequent battery problem a lot of Jumper buyers seem to get. The power adapter was plugged in, the battery was plugged in and the computer was running. I was taking a voltage reading at the battery connector of the motherboard, I accidently created a short circuit with my multimeter reading sticks and everything shut down. The spark lasted for less than a second but it was enough. I cannot boot my computer anymore, it is dead.

I tried to power it back but no success. When I plug the power adapter, the side red charging led goes on and off repeatedly. Then, when I press power once, nothing happens : black screen. When I press power a second time, the blue led in front of the keyboard light up for a fraction of a second and then turn off. Nothing happens after that.

I own a Jumper EZbook 3 Pro. 6gb of ram. Emmc 64gb. I don’t think I have the V4 since I can’t (and didn’t) play with the BIOS (it is locked).

 

Here’s what I tried so far:

– I disconnected the battery and the power adapter for a whole night, in order to reset the BIOS. It didn’t work.

– I hold the power button for more than 30 seconds, then release it for 5 seconds, then press the power button for another 5 seconds. It does exactly what it did before : when I press power a second time, the blue led in front of the keyboard light up for a second and then turn off.

– I tested the power adapter. It still delivers a 12.20V tension and amps (I was able to light up a bunch of 12V leds (2.5A consumption)).

– I took no chance and tried with a different 12V (3A) power adapter. It didn’t work.

– I took a good look at the motherboard and nothing seems cooked.

– I unsoldered the battery plug from the battery. I created a 8.7V power adapter and soldered it to the battery plug and plugged it in the battery input of the motherboard. It didn’t work.

 

Does anyone have any clue about what I should try to make it works?

 

Many thanks!

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