Develop Bugs

Anyone else have issues charging via computer USB?

I seem to have an issue that my phone never charges whilst connected via USB to my Macbook Pro. I have also tested on a Windows machine and have the same issue.
I was able to charge my Sensation over USB and I know that one of the ports on the Macbook has a higher output for charging but it makes no difference.
The phone states that it is charging but the percentage charge continues to drop. If I switch the power off it will charge. There doesn't appear to be any big battery drains though. I ran for a day and twelve hours over the weekend and charged at 40 percent.
Has anyone else the same issue?
Btw, I am on stock 4.0.2, rooted but not running anything else that should have any affect
Sent from my Galaxy Nexus using Tapatalk

How old is your macbook pro? Or more to the point, do you know if it has USB 3.0 ports? If your higher output ports are just 2.0 (and your computer is describing them as such compared to the older 1.0 spec) then you are stuck at 0.5A (half of wall charger output). USB 3.0 goes up to 0.9A, but I don't know if there are any catches in terms of devices needing to request the bump.
When you say that it charges if you switch the power off, do you mean it only works if you actually power down the phone? As in, leaving it sleeping plugged in, it still won't charge? Keep in mind that actively using the phone with the brightness turned up high could result in overpowering the .5A current in.
Unless you know someone else with a GN you can test you might just want to take it into the store and have them try it there/consider a replacement if it's defective. Also worth exploring if it's just the battery is defunct, if you have access to another one.

aidanbree said:
I know that one of the ports on the Macbook has a higher output for charging but it makes no difference.
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Really? Source?
Doing a tad of research it seems some models front (closer to the front) USB port has slightly higher output than the back (closer to the screen) USB port because the back one shares a USB controller with internal components.
It couldn't be noticeable though, they're both simply rated at .5A .
Has anyone else the same issue?
Btw, I am on stock 4.0.2, rooted but not running anything else that should have any affect
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I charge my 4.0.2 stock GSM Nexus off of my MacBookPro almost every night without issues. Using both an HTC cable and the Samsung cable.
JoeSyr said:
How old is your macbook pro? Or more to the point, do you know if it has USB 3.0 ports?
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MacBooks don't have USB 3.0. Its always been standard USB 2.0 afaik.
I'd also recommend that OP check different cables and computers, or different batteries if possible.

I have the exact issue. If I charge via USB on ANY laptop/computer it takes forever and if I'm using the phone as it's charging it uses more power than being supplied so it loses battery life even though it's plugged in.
I had this problem on my iPad too. It seems they need more power to charge but can still "trickle" charge off of a standard USB port.
My batter was at 10% last night, plugged it in to my laptop and sent some texts and left the display on (dev settings), about 10 min. latter it was at 4%.

I mean to post this last week!
See the screenshot....Status 'Charging' however as you see from the lower part of the screen, it has clearly stopped charging some time ago (about 3 hours earlier!)
It turns out that the CABLE was the issue....I thought all Micro USB cables were created equal, evidently not
Any ideas what the differences are in micro USB cables and how to identify which ones 'work' and which don't? I bought 10 from ebay which all seem not to charge from USB

I've had no problems charging via my pc using Samsung or Motorola cables. It charges slower but it still works.

[Q] External Battery with KitKat?

Since most third party chargers don't work anymore with the KitKat update, did anyone try an external battery?

All chargers works, just depends on cable and not chargers or kitkat. You get faster(slwoer charging depends on charger and quality of the cable.
For u question, I used Trent 11000 mah external battery pack, 5V 1Amp and with 3rd part usb cable, that are only for charging, without "data pins". It charging at 500 mah when screen is on, screen off at 930-980 mah and working as normal.
I dont know where u get that kitkat have anything to do with 3rd part chargers doesnt works.

dt33 said:
All chargers works, just depends on cable and not chargers or kitkat. You get faster(slwoer charging depends on charger and quality of the cable.
For u question, I used Trent 11000 mah external battery pack, 5V 1Amp and with 3rd part usb cable, that are only for charging, without "data pins". It charging at 500 mah when screen is on, screen off at 930-980 mah and working as normal.
I dont know where u get that kitkat have anything to do with 3rd part chargers doesnt works.
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Well my third party chargers stop charging when the screen turns off. Even if I use the USB cable that came with the Note. However, old chargers of HTC or Motorola phones do work with any USB cable. And I have read this from several other users as well.
I'm on stock 4.4.2 with stock recovery. What recovery/kernel/ROM do you use?

I only use third party chargers and cables and have never had a problem.

Razorless said:
Well my third party chargers stop charging when the screen turns off. Even if I use the USB cable that came with the Note. However, old chargers of HTC or Motorola phones do work with any USB cable. And I have read this from several other users as well.
I'm on stock 4.4.2 with stock recovery. What recovery/kernel/ROM do you use?
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The problem is Samsungs OEMs usb cable. I found it kinda weird, probably Samsungs have some kinda "handshake" with data pins and I got few of them from old Note 1/2/2014 and somehow it doesnt charge mine old Note 2 anylonger.
I got 4 of Samsunsg OEMs USB cables that comes along with Note 1/2/2014/EED100 (Desktop chagerstand) and I dont know anylonger which one is for each device. If I use wrong Samsungs usb cable, it charge mine Note 2 very slow, battery also drops while charging and I got to pick right usb cable for it to charge normal.
Now I just use this usb cable to charge mine Note 2014, too lazy to swap cable until find correct one and it works fine with any charger.
http://www.ebay.com/itm/PortaPow-Hi...ories_MobilePhoneChargers&hash=item4ac6919243
Mine Note 2014 is rooted with stock recovery/kernel (4.4.2 HK version)

TabGuy said:
I only use third party chargers and cables and have never had a problem.
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That's really intersting. Are you on stock ROM?
dt33 said:
The problem is Samsungs OEMs usb cable....
Mine Note 2014 is rooted with stock recovery/kernel (4.4.2 HK version)
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I tried using the Note charger with different USB cables and it works. Using third party chargers with Note cable does not work, but using HTC/Motorola chargers with any cable does. So I think the problem is with the charger, not the cable. Are you sure you used the Note charger with diferent cables and it didn't work?
Using a 1.0A charger charges the device obviuosly slower but the third party chargers (also 1.0A) stop when the screen is off or the device is powered down.

Razorless said:
That's really intersting. Are you on stock ROM?
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Yes

I use a limeade 16000mah battery and have never had a problem with it not charging.

Alright, I'm now officially out of ideas why this only affects some devices. Would you mind telling me what model you have?
Mine is a 605 LTE

Razorless said:
Alright, I'm now officially out of ideas why this only affects some devices. Would you mind telling me what model you have?
Mine is a 605 LTE
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SM-P600

Might be it's a bug in the 605 ROM/kernel. Or maybe related to the snapdragon 800 chip. Maybe Samsung screwed up some drivers, intentionally or not.

If anyone is having charge issues, change your cables. There's nothing special about a "Samsung" cable, but there's a lot of cheap cables out there that have enough voltage drop on them that they won't allow adequate charging. Also, make sure your charger is doing "AC" charging, not "USB" charging- the Note won't draw more than 500mA from USB charging and you may either experience slow charging or none at all if you're using it.
I'm running a P607T (US T-Mobile) model with the German P605 ROM (which should rule out "locale" differences), and my Note charges from any third-party charger I have and/or my Gorilla Gadgets charger battery just fine, whether screen is on or off.

Like I said before, my third party charger stops charging when the screen turns off, even if I use the cable that came with the Note. In settings under battery it says "charging - AC" but still.
It may very well be that these chargers are too "cheap".

The Samsung cable misses one of the two ground connectors. This method was used for devices with mini (!) usb to put them either in power or data transfer mode, depending on the cable used.
However, the Note don't care, I charge it with a 5pin-cable.
The charger should be fully Android - and Apple compatible, as the Note most likely checks for Ipad-compatible signals on the data lines for 2A support.

The USB Port of the P600 is really weird.....I`m searching a long time for a solution to use USB and charging at the same time, and I`m testing a lot of dockingg Stations for this.....thats really strange.....the Multimedia Dock, made for the Note 2, works with the Note 3, without Problems, alll Ports are working....but P600 doesnt accept it as any docking stations, it do absolutely NOTHING, if you put it in.....with the new desktop dock (without usb) both devices will accept it as an "Docking Station"...other Adapters, like Hama, with SD Card Reader, USB and micro USB, will accept as an USB connector, all works, but not charging......but now, the LAN to USB Adapter from Samsung for the PRO Tab Series, wich have 2 x USB, LAN and Charging Inputs, works fine, except the LAN Port......think, there no drivers there at P600.....The USB Port is not same pinned as the Note 3, and also not same as the Note 10.1 and other older Tabs.......maybe it`s same pinned as the PRO Series.....but not sure......
Gesendet von meinem SM-P600 mit Tapatalk

[Q] Nexus 7 won’t charge

Hi I bought my Nexus 7 2013 used in February. It came with a 3rd party charger and usb cable. It’s worked fine since I got it and it use to charge fine. I would use different usb cables and they would all work. Within the past 2 weeks or so it has become increasingly hard to charge it. Also this started happening on the stock 4.4.4 rom with root enabled. Today I installed a custom chroma 5.1.1 rom just to see if anything changed but it’s the same result it doesn't charge. The chroma rom says it has the Franco Kernel. Not really sure what that means but the stock rom's kernal wasn't changed.
I've left it off and connected charging to the AC for hours and would turn it on and it would have not raised at all in battery charge percentage. When it’s on and I can better see the percentage in this battery app I have installed I noticed if I jiggle the cable at all it will disconnect and connect again. So it might not be making good contact. It does this with every usb cable I have tried on it. However when I don’t move it and have it charging in sleep mode it does see it as connected and it says charging in the battery monitor widget app when I wake it, but it doesn't charge stays at the same percentage or lowers.
There is sometimes where I get lucky and it starts charging but it’s becoming increasingly tougher to get that to happen. I haven’t had any luck since last night messing around with it with different cables. I've even tried charging it on my PC but it’s the same result. It says charging but it doesn't charge. However if I do connect it to the PC I can view the files on the Nexus 7 fine as long as I don’t move the Nexus 7 much. I've also tried the AC adapter on my phone to see if it works and it works fine and charges. I've tried a kindle fire 9w charger on the Nexus 7 and that doesn't charge either.
Any idea what’s the problem? If I buy the official AC charger do you think it would work? Am I better off buying a Qi wifi charger? I rather not waste money on the AC charger if there is a good possibility of it not working.

Hi,
I seem to have the same problem recently. I am running on 20150519 CM12.1 nightly right now but this problem started to occur about 2 weeks ago i.e. with an older nightly version running...
It really feels like the USB connector is broken. I have to move it the same way headphones jack has to be moved when it is broken. Have you tried more different chargers? I did but no solution.... Now I got it luckily charged to 90% and I am making a quick backup.
Do you have still warranty? I technically do but would need to get back to stock and lock the bootloader back.
I found threads on how to get back to stock via USB connection but is it possible to lock the bootloader without being able to connect USB to computer?

No unfortunately I have no warranty since its a used item. I tried the 3rd party cheap charger, amazon kindle fire charger and my phone charger on it they all don't charge. I think you can replace the USB board on it but that would require opening it up and doing the repairs yourself. I think I will just get a Qi charger and see if that works. I kinda don't want to spend money on that just to find out its my battery that doesn't work. I am not sure what the problem is since I can connect the nexus 7 to my PC and it will see it and its files fine. So I know the USB port works at least a little bit.

It's a sub-board (usb-sim-touch module) issue. I would reccommend using a wireless charger as a quick fix since the wireless charger module is located on the motherboard itself so you should be good.
I may have a few sub-boards for the 2013 lying around but i'm not sure if they're 100% okay - as in calibrated, tested and fully functional. Also, i'd need to know if yours has LTE or not.

I have a Nexus 7 2013 32gb wifi edition. Thanks for the info. I put in an order for one of those wireless chargers.

MobRookie said:
Hi, I seem to have the same problem recently.
I am running on 20150519 CM12.1 nightly right now but this problem started to occur about 2 weeks ago i.e. with an older nightly version running...
It really feels like the USB connector is broken. I have to move it the same way headphones jack has to be moved when it is broken. Have you tried more different chargers? I did but no solution.... Now I got it luckily charged to 90% and I am making a quick backup.
Do you have still warranty? I technically do but would need to get back to stock and lock the bootloader back.
I found threads on how to get back to stock via USB connection but is it possible to lock the bootloader without being able to connect USB to computer?
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eureca said:
I have a Nexus 7 2013 32gb wifi edition. Thanks for the info. I put in an order for one of those wireless chargers.
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perhaps you did that already, but from experience i must say that in 9 out of 10 cases it's the cable and 8 out of 10 cables are mediocre as compared to how it could be. no why i say that ist because i tested something between 50 and 60 cables during the last 2 years because i had similar issues and bought a special ampere and voltmeter with with the correct usb ports to measure the flow, same device, same power source, thus as empiric as possible result most cables charged between 0.9 and 1.1 A while about 10% were half of that and only few charged at 1.5A while 3 charged at between 1.9 and 2.1A. understand me right, same device, same charger, sam place all same condition, in car, on motorbike, on wall plugs. only significant difference were the cables. so check those first before taking more costly path which then only remain workarounds.
BTW amongst the bad ones were many that came out of the box with the devices and from different oems but many samsung original cables.
what i did i painted the ends of each cable with red for bad, yellow for ok, green for good and the outstanding ones already had a color, it were the stock cables from the oneplus one which had the best charging rate. good luck

Some questions on charging battery issue

Hey guys. Just wanna ask some question.
My note 10.1 2014 P601 is now running stock 5.1.1 un-rooted. Basically everything stock. I know that our Note need its own charger to work properly. But I lost the original charger long ago, and I've been using only the USB I bought separately to charge my tablet by connecting it to PC.
Now, my mother just bought a new phone (Galaxy A7) and when I try to charge my tablet with her charger, sometime it shows X mark (which means insufficient, exactly like when i connect to pc via USB cable) on the battery icon, but sometime it shows the lightning (which is fine) icon. The speed of the charge depends on that sign, if on lightning sign, from 0 to 100% takes about 4h. But if on the X mark sign, 4h will just get around 40%.
I don't really know what happened, but I have to unplug then re-plug again and again to get the lightning sign to come up. I then bought a new charger (from a legit well-known store and they said it's the best quality) and it does the same thing. I haven't got a chance to borrow anyone's original note charger yet as I found no one using this device. And now I start to think it's the problem with my Note more likely than anything. I haven't tried to reinstall the firmware either as I just updated the firmware like few months ago.
I've been using it for about a year btw. Sorry for my English. And looking forward to hear from you all.

The usb jack or its solder contacts may be damaged. Also, if no case is used and the backside of the Note squeezed when holding it in your hands, the cables for usb and display may work themselves slowly out of their pcb connectors. I don't know if the squeeze theory is right, but definitely there are many loose cables...
A charger must be Qualcomm Quickcharge or Apple iPad compatible, 5v 2A. I haven't used a Sammy Charger for a single time,tho they seem just too good to throw away.

lecorbusier said:
The usb jack or its solder contacts may be damaged. Also, if no case is used and the backside of the Note squeezed when holding it in your hands, the cables for usb and display may work themselves slowly out of their pcb connectors. I don't know if the squeeze theory is right, but definitely there are many loose cables...
A charger must be Qualcomm Quickcharge or Apple iPad compatible, 5v 2A. I haven't used a Sammy Charger for a single time,tho they seem just too good to throw away.
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Are you sure the Qualcomm Quickcharge would work on this P601? I checked the list before and I didn't see the Note 10.1. Not even the Note 3 which was released together. I afraid that being "not compatible" might fry the device.
If you're using one and not having any problem, can you post the link to the product that you're using and working well?

I forgot about the different SoCs. However, all models charge at 5v/2A and the signaling technique used for Quickcharge seems to be borrowed from that of the Apple iPad, the Exynos based models should be just the same. I plugged my Note into an Apple compatible charger, which was from a time when Android smartphones were charging at 0,9A and Android tablets had proprietory connectors, and it was charging at 2A.

Does anyone here use thunderbolt?

I plugged in my phone via my thunderbolt slot with USB Type-C and it says "Charging slowly". Is there a new type of USB C I need? (I got this type C cable in 2015). However, back when I had my nexus 5x, it would say "Fast charging". So I'm a bit confused here...
Is this normal?

The Nexus and the 5T have different power delivery specs. I would consider this normal.

xocomaox said:
The Nexus and the 5T have different power delivery specs. I would consider this normal.
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Alright thanks!
I had gone ahead and plugged in the cable that came with the phone in my pc, now it says charging (not slowly) anymore. However, I want fast charging. I'd have to assume I need to buy USB C - USB C with a specific speed?
I'll look into it. Thanks for your help!

No, that means that the oneplus 5t won't fast charge from anything other than its charger due to different charging protocols. Changing the cable won't make this better.

Dariusdd said:
No, that means that the oneplus 5t won't fast charge from anything other than its charger due to different charging protocols. Changing the cable won't make this better.
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Thing is, I am using the cable that was provided with a usb 3.1 slot. Even when placing it in a 3.0 slot, it doesn't say "Fast charging" but just "Charging". Unless that's now how it works in the one plus 5t. I come from the nexus phones so I'm just assuming everything as I am new to this specific brand.
The phone itself is lovely! It's a really good, solid phone and I will never go back to the nexus phones ever again. I cannot wait for custom roms to come out with Oreo!
EDIT: Aah, problem solved. Turns out you need to use the Dash power adapter. Now it's charging extremely fast! Thank you so much for you help!

The phone's usb C port is USB 2.0 spec compliant, so the USB 3 higher power delivery sadly won't work. It's good that you like the phone.