Fairphone 2 unusable while charging

After applying the update my screen is still freezing during charging.
But the charging itself is so much better after the update.

Same problem here: while recharging the phone gets “wild”! I can’t use it well since it doesn’t work well when I tap icons or words or unlock patterns (the worst frustrating thing, guys!). Adding this trouble to the microphone not working well at all (people can’t simply hear me!) I must say that buying FP2 was NOT a good idea :cry:

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With how many chargers have you tried that? Try also charging the FP2 on your PC. Do you have this problem with all your chargers?

Same problem with different charges and connecting the FP to the PC.
Anyway suggest me some chargers that seem going well and I will try them.
Thanks.

Same problem here.
On some chargers the touchscreen gets totally unresponsive during charging.
I’m not sure if this is a problem with the charger or with the phone. It might be a hardware-problem or a software-problem with the fairphone 2, that is triggered by some chargers.

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OK. I have an Anker charger, without causing touch screen problems.

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The charger from a Microsoft smartphone does the trick for me. The charger of my old FP1 didn’t…

Ok, guys, Anker recharger seems working fine! I don’t know why thou… So it would be good if FP developers added to this tip to the specs

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Issue still exist in 1.3.6 !

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I had constantly problems with my original LG chargers below 1A but also with the one that has 1A output. Problems were the same as described here.
However since I am now using the vegavolt (2A) multi charger A621 (for many handheld including 20 connectors) I suddently can use my FP2 while charging and the phone stays cool. I must say I am not amused that FP recommended any kind of chargers without mentioning the effect on the display. I am not sure if everybody wants to read all these forum entries or buy more than one charger in vain before charging the FP2 correctly. I learned that the lifetime of batteries depends on correct charging. Also I felt that my old smaller chargers < 1A made the device slightly increase temperature maybe up to 40-50 degrees celsius. Avoiding this heating over longer cycles in time should have a much better effect on the lifetime of battery and phone.

I also still having this issue with FairphoneOS 1.3.6 and a HTC charger 5V/1A :disappointed:

I also have this issue and updating to 1.3.6 didn’t fix it.
This is clearly not a charger issue but a Fairphone bug. I use a new 2A charger with new cable and used the “Ampere” app to check that there was more than 1A used while charging.

I bought an anker charger. With it the phone is totally unusable while charging. The touchscreen is jumpy and the screen freezes every few seconds. My chargers with lower output still affect the screen, but not as badly!. The new charger charges faster, but that is all. Every charger I have affects the screen to some degree, some have also a connectivity issue.
Also, the problems are constant with the charger, no matter which (data)cable I use…
Very frustrating!

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Have you tried if the screen has those problems if you connect your Fairphone 2 to the computer/laptop?

I’m not sure that it is the good question. We know that this issue depend of the chargers and/or cables.

It just shouldn’t be the case (especially with devices which are sold without charger and supposed working with all reliable chargers).

I don’t know if it is a hardware or a software issue. If it is a software issue, i’m a bit disappointed it still not fixed.

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Just to be clear:
The current rating of the charger is not related with this issue!

There are - in my opinion as an electrical engineering student - two possibilities:

  • Most chargers are switching power supplies, it might be the case that the hight frequency is not filtered enough and the touchscreen is confused by that. I think this is unlikely since nobody reported this issue for powerbanks which use switching power supplies as well.

  • The charger’s output voltage has a potential to protective earth. And since you are also (with a more or less high resistance) connected to the earth, the touchscreen is confused. I think this is the root cause.

I’m not a charging expert, but I think the only possible solution is using an other charger which doesn’t have this issue.

Since I don’t have this issue, I cannot do tests myself, but I do have a theory for a workaround: Isolate yourself. Stand on a isolating material, like a plastic plate. The problem shouldn’t be there any more.

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I have that problem with my Fairphone since upgrading to OS 1.3.6 on one of my chargers.
I had similar problems with (other) chargers with my HTC Desire HD, but not with this one.

Does anyone has this problem?
Anoying buzzing and flikkering … repeatedly en continiously while charging
It only seem to appear when my battery is almost empty/low
Screen becomes unusable, like described above
It stops after rebooting or a few minutes of charging

Slow charging anyway
Low battery after using fp2 for 3/4 day: a few short calls, a few internet searches and a 15 or zo sms messages sent … Gps/lotion off, Bluetooth off etc.

Both the unusable screen and the slow charging indicate that you should try another (better) cable to charge your FP2. Most people get lucky and the first cable they try works fine, but some reported that they tested 3 or more cables until they found one that works without causing troubles.
Make sure you have a good quality data cable (not just a charging cable).

Hi,

I couldn’t find this reported anywhere so here it is:

I have a double plug socket with two dedicated USB ports for charging USB devices. It’s rated as 2.1A / 5V. The phone (FP 2 / Android 5.1) seems to charge as expected, however the touchscreen becomes practically unusable when connected to either of the 2 ports available: it becomes hyper-sensitive and often completely unresponsive. The only way to carry on is to ‘lock’ the phone, then unlock it, but even then the problem persists a few seconds later.

If it helps, the exact model of the wall socket is here

Any ideas on how to solve this? I have two of these USB-containing sockets and the problem is repeated on both of them, ruling out a problem with the sockets themselves.

Other than this, love the phone, thanks!

AK.