First of all, many thanks to Hashcode for his great work. Second think, please forgive my poor english skills
I succesfully installed CM 10.2 in my KFHD7. It runs smoothly but I found that the touchscreen behaves erratically when the kindle is hooked to its charger, ie, it's almost impossible to type anything because it keeps on inserting (or erasing) random letters. To solve the problem is enough to unhook the charger.
I tried other ROMs like Pac-man to no avail, same situation. All of them had 3.0.50+ kernel version. I wasn't able to patch and run a lower kernel version but I'm ready to additional testing.
TIA
That problem is because of the charger, I believe it is caused by it being slightly under the amperage it should be putting out, I have a similar issue with my iPod car charger, except it somehow effects devices around it in in a 3 foot radius as well.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
stunts513 said:
That problem is because of the charger, I believe it is caused by it being slightly under the voltage it should be putting out, I have a similar issue with my iPod car charger, except it somehow effects devices around it in in a 3 foot radius as well.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
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Click to collapse
Thanks for the tip. After some testing, in fact, it seems the charger is the problem's origin.
I didn't bought the original Kindle charger. I have several micro-USB chargers at home and I use them at will without repairing which one I'm using. Well, a couple of them are in the 750-850 mA range and every time that I connect the to the tablet the erratic behaviour arises again. If I connect the Kindle to a PC port (500 mA) or to an 1 A charger I have no problem.
So with your advice I was able to pinpoint the problem's source. Again many, many thanks :highfive:
My experience with four different chargers (all of them 5V):
- 2A/1A (Kensington iPad/iPod car charger): everything OK on both outputs (2A and 1A).
- 0.85A (Amazon wall charger for Kindle Keyboard e-reader): KFHD7 detects more than three touches for every real touch, unusable while charging.
- 0.7A (Blackberry 9700 wall charger): KFHD7 sometimes detects an additional touch (not for every real touch), you can use it while charging but you must be careful and stop undesired actions.
- 0.55A (Huawei Y300 mobile phone wall charger): everything OK (now connected, not sure it is really charging although it reports so).
Sent from my Amazon Kindle Fire HD using Tapatalk 4
jmolinuevo said:
My experience with four different chargers (all of them 5V):
- 2A/1A (Kensington iPad/iPod car charger): everything OK on both outputs (2A and 1A).
- 0.85A (Amazon wall charger for Kindle Keyboard e-reader): KFHD7 detects more than three touches for every real touch, unusable while charging.
- 0.7A (Blackberry 9700 wall charger): KFHD7 sometimes detects an additional touch (not for every real touch), you can use it while charging but you must be careful and stop undesired actions.
- 0.55A (Huawei Y300 mobile phone wall charger): everything OK (now connected, not sure it is really charging although it reports so).
Sent from my Amazon Kindle Fire HD using Tapatalk 4
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Click to collapse
Thanks for your information. It validates my own experience point by point.
BTW, my problematic chargers came from two mobile phones: 780 mA charger from a Samsung Galaxy SII and 850 mA charger from a Sony Xperia Mini Pro.
Saludos/Regards
Related
I know some other people have reported this with their NC, but I can't seem to find the threads. I was trying to use mine the other day while it was charging and the on-screen keyboard was putting duplicate and incorrect characters on the screen. Just wondering what solutions people have found for this problem ?
http://nookdevs.com/Recalibrate_the_NookColor_touch_screen
Tried them all, none of them worked for me
same problem here. it used to happen with my Evo when i first got it. hopefully it will be fixed in upcoming patches.
Try a different power block, the one that came with my wife's nook gets really hot and makes the screen freak out, but her palm pre power block works perfectly.
Sent from my SAMSUNG-SGH-I897 using XDA App
It's somewhat of a known issue
http://bookclubs.barnesandnoble.com...rt/Nook-Color-Keyboard-Sensitivity/m-p/758136
i think i'm going to try to get my charger replaced and see if that address the issue
I experienced the same problem yesterday.
But I was charging it next to my MacBook Pro. When I increased the distance between the MBP and the Nook everything worked find again.
Maybe it has something to do with magnetc/electirc fields?!
Don't know.
try another charger- with suggestion
Try another usb charger, this helped me resolve the issue.
I got a Scosche Dual Usb charger (with ipad support) from staples (US based office supply store for $25.
It has a 2.1A usb port and a 1.0A usb port, so it is more than enough current to charge as fast as the original and the keyboard issue is resolved. I typed a paragraph or two and didnt have 1 repeat or stutter. THe BN charger must not be sufficiently filtered and the NC susceptible to the noise. Thats just a jut reaction but the charger resolved the issue for me.
Scosche model USBH3 Revive II dual port home charger.
I'm just curious. I'm not sure it's safe, since one has a 10W output, and one has a 5W. If you do, have you had any problems? Notice it charging faster than usual?
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Yeah, that's what my phone charger outputs. The iPad/iPhone chargers have the same output as the Nook/Android phone, and they claim to be safe to use with either one. Not sure if that applies to android phones though, or if there needs to be some safety circuit in either the phone or the charger. Would love to only have to deal with one charger...
It's 5 volts at UPTO 2 Amps. If your device can only draw 5W thats all it will do then overcharge protecton etc cuts in.
I've used the Nook charger on
Nook Color
Nexus One
Blackberry
Plantronics SteroeBluetooth headset
No problems.
As long as the voltage is correct you are good to go. The phone draws amps from it, it won't draw more amperage than it needs.
I noticed that my nook USB cord doesn't fit my Motorola Droid 1, however, my Motorola Droid 1 Phone charger fits my nook :\
Anyone else confirm this?
Also, when plugging in the nook I get no indication that it is actually charging, is this suppose to happen?
EDIT: It appears that it doesn't charge when I plug it into my computer, if it is, it is super slow and doesn't display that it is charging. However, when I plug it into the wall with an A/C USB adapter it shows the charging icon.
from what I got, The nook charger has 6 more pins making it faster, but not compatible with other devices, but the nook itself can get a normal charger and it will be fine just slower.
fingerman12 said:
from what I got, The nook charger has 6 more pins making it faster, but not compatible with other devices, but the nook itself can get a normal charger and it will be fine just slower.
Click to expand...
Click to collapse
Except the 6 pins (or w/e num) are added on top of the existing ones, so unlike say a headphone jack with an extra layer for using a microphone, its not backwards compatible (atleast not without an adapter) for normal ones (like my headphones example), rather troublesome imo.
But the power converter works fine for phones.
Sent from my MB300 using Tapatalk
knatcal said:
As long as the voltage is correct you are good to go. The phone draws amps from it, it won't draw more amperage than it needs.
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Click to collapse
Thanks makes sense.
Just tried it and it works fine on my phone too. Has to use a generic micro usb cable though. The nook one did not work.
I wonder if the reason the nook color cable doesn't work with other devices is due to the charging light built into the cable. I'll try charging it from a non-nook cable to see. If it charges fine either way, I'll be able to cut it down to 1 charger 1 cable. Would be far more convenient.
Has anyone else noticed a slower charge on non-nook cables? If it really does have more pins, that would be a dissapointment. The cable is so short, I'd probably have replaced it anyway.
the nook color charger connector is shaped slightly different -- its longer --, so it wont fit properly into other devices that use standard microusb.
Is there supposed to be some kind of notification when the unit is off, that it is charging properly. I bought my nook color used and it didn't come with its official charger. I have a bunch of standard (low amperage) USB chargers and 1 iPad type (2amp) charger. I tried the iPad one and the unit gave a "Not charging" message in the settings screen.
How long does it take to charge when using a 3rd party charger?
JDMpire said:
Is there supposed to be some kind of notification when the unit is off, that it is charging properly. I bought my nook color used and it didn't come with its official charger. I have a bunch of standard (low amperage) USB chargers and 1 iPad type (2amp) charger. I tried the iPad one and the unit gave a "Not charging" message in the settings screen.
How long does it take to charge when using a 3rd party charger?
Click to expand...
Click to collapse
Do not resurrect dead threads, they will turn into zombies and eat your brains.
How long does a non-BN charger AND Cable take? Four times longer. It's .5A vs 1.9A. You can get by with a 2A charger, but you must have the B&N cable to charge at the 1.9A rate.
Hello there.
Not long after I bought my KFHD (in May last year) I noticed my original charging cable was no longer connecting properly. The connector to the Kindle needed to be held in place when charging or connecting to my computer. I initially suspected that the fast charger was at fault, however I soon found another cable and this solved the issue.
However, a few months ago I noticed a similar issue. However, using different cables and chargers made no difference. I tested with the following chargers/cables:
Kindle "PowerFast" + Samsung "U2" cable (from Galaxy S) - untested with other devices
Kindle "PowerFast" + Samsung "UC" cable (from Galaxy S3 mini) - works
Kindle "PowerFast" + Original KFHD cable (from my KFHD 7" ) - cable dead
Archos Gamepad (7") charger - works
Samsung USB charger (from Galaxy S3 mini) - works
Samsung USB charger (from Galaxy S) - barely works
This gradually became more and more of an issue until recently, when the Kindle refused to charge at all. Until I noticed this problem, I had been leaving the Kindle on when I wasn't using it. I haven't used it for the past few weeks, and when I have tried chargers, I tried them while booted into TWRP.
Does anyone know what the problem could be and if there are any easy solutions?
My nook HD tablet's battery isn't wanting to charge after only a year and a few months change. I have tried different plugs, did a debris check on everything. Secure connections and LED turns on to green so power is getting to the thing. The brick it came with worked last might so I dunno.
This is a disgrace since it's only been a year and change. the laptop Google sent me? Ye Olde Underpowered CR48? After five years and nearly /destroying/ the keyboard to the point the letters and f/j guide bumps are gone... still gives 3ish hours of battery.
Technically the nook HD is not user serviceable, but if newpower99 still sells replacements, intend on ordering one end of the week. However I am open t any suggestions if anyone has them since I don't particularly like the idea of dropping $60 on a battery if I can avoid.
Charging while off? USB mode?
I am reasonably new to this device, but I have two observations. First, if you have used a tool such as @verygreen usb mode switcher to (attempt to) get host mode, then the charge light shows green even though it is not charging. See other threads about this - I can confirm this is the case. Also, not sure when this happened b/c I've been changing lots of things lately, but now I note that the powered-off Nook HD+ does not charge at all (no lights, no change in charge % at next power-on). This is from Nook wart or "smart charger" 2.4A. I can boot to recovery and that seems to allow charging. The only reason I mention this is because I am attempting the Advanced Battery Calibration (look in Play Store) which requires a shutoff plus recharge. If your Nook HD will still boot, maybe this will help.
cm-12.1-20150704-UNOFFICIAL-ovation.zip + ttk_gapps-modular-pico-5.1.1-20150628-signed.zip + wrp-2.8.7-ovation.img
Goggles2114 said:
My nook HD tablet's battery isn't wanting to charge after only a year and a few months change. I have tried different plugs, did a debris check on everything. Secure connections and LED turns on to green so power is getting to the thing. The brick it came with worked last might so I dunno.
This is a disgrace since it's only been a year and change. the laptop Google sent me? Ye Olde Underpowered CR48? After five years and nearly /destroying/ the keyboard to the point the letters and f/j guide bumps are gone... still gives 3ish hours of battery.
Technically the nook HD is not user serviceable, but if newpower99 still sells replacements, intend on ordering one end of the week. However I am open t any suggestions if anyone has them since I don't particularly like the idea of dropping $60 on a battery if I can avoid.
Click to expand...
Click to collapse
Mine did the same. Orange light is charging green isn't... Mine would sometimes charge on a computer USB port but never on any charger. A different charge cable and it works on stock charger as well as other high output chargers. Those are tough to find though. Battery life is still fine.
Sent from my A0001 using XDA Forums
Thanks to PeteInSequim, I had an ebay acquired HD running nicely on Lollipop, for about 6 hours. Next morning I lost control of it. The notification tab kept popping up and down about 3 times per second and other "ghost " input things were happening. I tried cleaning the screen, rebooting, etc and it mostly keeps doing this.
I assume this is a hardware issue,most likely digitizer gone bad? I took it apart and reseated the cables to the screen, but no improvement.
Any thoughts?
To answer my own post, over a month later, it seems to be a charger issue. This particular Nook HD does not like a particular LG 2 amp charger . A replacement NOOK HD doesn't have a problem with it. I got the "problem child" Nook to charge on an HTC 1 amp charger and bought yet another NOOK that had the original factory charger and its happy with that one too.
My second NOOK doesn't like another 2 amp charger I have and also gets unstable.
Does this make any sense at all?
rs899 said:
To answer my own post, over a month later, it seems to be a charger issue. This particular Nook HD does not like a particular LG 2 amp charger . A replacement NOOK HD doesn't have a problem with it. I got the "problem child" Nook to charge on an HTC 1 amp charger and bought yet another NOOK that had the original factory charger and its happy with that one too.
My second NOOK doesn't like another 2 amp charger I have and also gets unstable.
Does this make any sense at all?
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Click to collapse
Yes, it makes sense. There are so many chargers out there, and some of them don't provide a clean supply to the device. Personally I haven't seen problems charging Nook HD and HD+ with random Amazon Kindle chargers, Nook HD and older Nook Color/Tablet chargers, and more modern Anker, Poweradd, and Photive multi-charger blocks.
I would try to clean off the screen really well. If the screen goes crazy, turn the device off (just tap the power button) and clean the screen off again and tap the power button again. Works for me on Nook HD and Nook HD+ using Cyanogenmod 10 and 11 hacks.
I have seen a bad SD card cause random evil strangeness before also. I would suggest a fresh install of everything after resetting to full stock Tom and recovery, use said recovery to do a factory reset, reinstall twrp, then flash as desired. This took care of a weird battery issue I had once also. As for ROMs, pick your poison.
^^ on the particular nook in question, all is well now. I haven't tried going back to the charger it didn't like. I askeered....