Database Users

[Q] Charge from PC in debug mode?

I have My Tab plugged in to my PC all day while debugging on it as I develop, unfortunately the fact that the tab somehow and for some reason disables charging while debugging is causing a huge problem for my workflow.
Can anybody suggest a possible solution that will allow me to charge and debug at the same time. My boss may consider allowing me to root the device (I know it's easy, I could do it right now, but it's political) if I know it's the only option.

The power outlet of the USB port isn't enough to charge it, which is driving me nuts too.
If you root it you can use ADB wireless (free app on market) to use adb over the wifi, and have the tab plugged into the wall. Otherwise I don't know. Maybe a hub with it's own power supply **might** do it, but I'm not sure.

TheGrammarFreak said:
The power outlet of the USB port isn't enough to charge it, which is driving me nuts too.
If you root it you can use ADB wireless (free app on market) to use adb over the wifi, and have the tab plugged into the wall. Otherwise I don't know. Maybe a hub with it's own power supply **might** do it, but I'm not sure.
Click to expand...
Click to collapse
Thanks, I assumed it was a software check that it's connected in debug and simply disabled.
My boss has agreed to allow me to root it on the basis that I can restore it to factory if required.

Cool beans. Glad I could be of assistance.

TheGrammarFreak said:
Cool beans. Glad I could be of assistance.
Click to expand...
Click to collapse
I'm still surprised it's that much of a beast that it needs more power than the USB port can supply, I mean, is it all because of the screen?
The wall charger does 2A
But the specs aren't any higher than my HTC Desire except for the screen and that only needs 1A from the charger and can charge by USB too.

I genuinely have no idea. I'm given to understand that the Tab does charge from USB, albeit slowly. As for why it needs 2A, who knows. Maybe Samsung don't like us using other chargers.

TheGrammarFreak said:
I genuinely have no idea. I'm given to understand that the Tab does charge from USB, albeit slowly. As for why it needs 2A, who knows. Maybe Samsung don't like us using other chargers.
Click to expand...
Click to collapse
Well my Tab doesn't charge from USB unless it's switched off. If it's on, the Battery symbol has a line throgh it, as in "charging disabled".

Yeah, mine does that too. I just use wireless ADB now, so much easier

alias_neo said:
Well my Tab doesn't charge from USB unless it's switched off. If it's on, the Battery symbol has a line throgh it, as in "charging disabled".
Click to expand...
Click to collapse
I think you will find that even in those circumstances it is still actually charging, albeit very slowly.
I had my Tab hooked up to my PC last week and when I connected it up it was showing that it wasn't fully charged, and didn't appear to be charging. However, when I disconnected it some time later it appeared to be fully charged.
Perhaps it would be worthwhile downloading JuicePlotter to see what affect, it any, connecting the Tab to your USB port has.
Regards,
Dave

It's not the specs of the device, it's the size and resistance of the battery. It charges slowly over USB, and it charges a much smaller percentage of the battery's capacity than it would with a smartphone.
Easy math, it's over 3x the capacity of your Desire battery, and as you well know, even your Desire battery charges slowly over USB compared to mains.
The larger backlight should consume about twice the voltage of a 3.7" display (rough estimate), so you're barely pushing any charge at all via USB when the display is on, a trickle of a trickle.

Croak said:
It's not the specs of the device, it's the size and resistance of the battery. It charges slowly over USB, and it charges a much smaller percentage of the battery's capacity than it would with a smartphone.
Easy math, it's over 3x the capacity of your Desire battery, and as you well know, even your Desire battery charges slowly over USB compared to mains.
The larger backlight should consume about twice the voltage of a 3.7" display (rough estimate), so you're barely pushing any charge at all via USB when the display is on, a trickle of a trickle.
Click to expand...
Click to collapse
You're right, I probably should have looked into the rating of the Battery in this thing. As an Engineer, the math is trivial.
Still, It appears to me that it's not charging at all, not even trickle, from full charge when I left for work this morning to empty before the end of an 8 hour working day with it plugged in to usb the entire time, slightly disappointing result.

Just as a matter of interest, I installed JuicePlotter and attached my Tab to my laptop and adb'd into the Tab and left it for a while. JuicePlotter definitely shows the battery charge rising, but probably only in the region of 5-10% per hour.
Regards,
Dave

foxmeister said:
Just as a matter of interest, I installed JuicePlotter and attached my Tab to my laptop and adb'd into the Tab and left it for a while. JuicePlotter definitely shows the battery charge rising, but probably only in the region of 5-10% per hour.
Regards,
Dave
Click to expand...
Click to collapse
I'll give it a try, where do I find this juice plotter? Market app?

alias_neo said:
I'll give it a try, where do I find this juice plotter? Market app?
Click to expand...
Click to collapse
Yes, it's on the Market.
Regards,
Dave

foxmeister said:
Yes, it's on the Market.
Regards,
Dave
Click to expand...
Click to collapse
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?

TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
Cause its the gentalmanly thing to do? lol. Maybe its a sort of signature.

TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
? Same reason you sign all of yours like so?
HTC Legend, CyanogenMOD 6.1 nightly build 44 with 787MHz OC and /system overlay
Gapps for nightlies: (not that you should ever need them)
gapps-mdpi-20101020-signed
gapps-mdpi-tiny-20101020-signed
Please search, and engage brain! Click me!
---------------------
Device 2: Samsung Galaxy Tab, rooted
Click to expand...
Click to collapse

TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
What Deafjam said!
Regards,
Dave

This power thing is annoying. I bought a 1 amp car charger USB adapter when I got my HTC Desire as running my satnav software on it otherwise depleted the battery quickly. The 1 amp charger was enough to charge the phone while running the software.
However, if I use it with my Tab, rhe battery is still running down while using the satnav software, although slowly.
If I got a 2 amp car charger adapter, would that solve the problem? Can one buy 2 amp adapters for the car? I don't reallly want to buy the way overpriced Samsung car charger, which isn't even available yet.
EDIT: OK I've found 2 amp USB car chargers are available. Will 2 amp be enough to charge the Tab while running the satnav software?

norm2002 said:
This power thing is annoying. I bought a 1 amp car charger USB adapter when I got my HTC Desire as running my satnav software on it otherwise depleted the battery quickly. The 1 amp charger was enough to charge the phone while running the software.
However, if I use it with my Tab, rhe battery is still running down while using the satnav software, although slowly.
If I got a 2 amp car charger adapter, would that solve the problem? Can one buy 2 amp adapters for the car? I don't reallly want to buy the way overpriced Samsung car charger, which isn't even available yet.
Click to expand...
Click to collapse
I have never seen a 2A car charger but yes, that would do the trick if you found one. I assume Samsung's will be 2A, how much is it to be "overpriced"? A 2A Samsung official car charger is probably worth about £25 I'd say.

Can i use a USB 3G stick with OTG on the nexus?

before signing up for another data line, was wondering if i can use a otg cable and stick a 3G usb stick to use data on the go
would this thing drain my battery too quick if it does work?
any experience and input are appreciated.

Might be better to get one of those mobile hotspot things where it has it's own battery...if you can. I would guess even if it can work, it would drain your battery very quickly.
Sent from my Nexus 7 using Tapatalk 2

In theory it could but in practice it wouldn't be viable. Better off tethering if you can.
Sent from my Nexus 7 using Tapatalk 2

thanks all, i tend to tether so much that i wind up with a dead battery on my phone when i am on the road
i'd suppose i can get another cheap 3G phone for tethering only thanks!

U can otg--- > USB cable--->phone.... I found my n7 will charge my thunderbolt for situations where I can't get to a car or ac charger. Haven't tested what a full charge would take timewise/toll-wise on n7 and I would assume your phone battery might keep draining even while leeching power from the n7 if you are tethering and using heavy bandwidth

wtfmate913 said:
U can otg--- > USB cable--->phone.... I found my n7 will charge my thunderbolt for situations where I can't get to a car or ac charger. Haven't tested what a full charge would take timewise/toll-wise on n7 and I would assume your phone battery might keep draining even while leeching power from the n7 if you are tethering and using heavy bandwidth
Click to expand...
Click to collapse
well.....wouldnt that drain your tablet then? lol, kinda defeating the purpose now

Yes troll it would drain your tablet but not as much as a 3g dongle through USB. Did you even read the thread? What do you think the "purpose" is? I didn't say its ideal I said for situations where your phone is about to die from tethering and you need a little charge. Just trying to help.

Since wii're throwing out ideas, I picked up a 5000mA battery charger for $25. It was on sell, so don't expect that price. My Nexus 7 doesn't accept the charger for some reason, but my phone would charge from it. So you can tether and always be able to charge your phone. The thing I have is about the size of a MiFi thingy. LoL!! I think they're going for about $60+ now. Since my E4GT has a 1800mA battery, I technically have 3 batteries with a remainder of 1400mA. That's practically 4 batteries. LoL!! =.P
I bought something "like" this. Looks very much alike except it wasn't from China and it had a 1A and 2.1A port. And I have no idea where "solar" is even coming from. The one I have has nothing "solar" about it. LoL!!
http://www.ebay.com/itm/New-5000mA-...ccessories&hash=item2c650dd34a#ht_2856wt_1197

wtfmate913 said:
Yes troll it would drain your tablet but not as much as a 3g dongle through USB. Did you even read the thread? What do you think the "purpose" is? I didn't say its ideal I said for situations where your phone is about to die from tethering and you need a little charge. Just trying to help.
Click to expand...
Click to collapse
Obvious asshat is obvious. The guy points out a fatal flaw in your thinking and suddenly he becomes a troll? You need to brush up on your definition of troll.
I haz no sig

No_Nickname90 said:
Since wii're throwing out ideas, I picked up a 5000mA battery charger for $25. It was on sell, so don't expect that price. My Nexus 7 doesn't accept the charger for some reason, but my phone would charge from it. So you can tether and always be able to charge your phone. The thing I have is about the size of a MiFi thingy. LoL!! I think they're going for about $60+ now. Since my E4GT has a 1800mA battery, I technically have 3 batteries with a remainder of 1400mA. That's practically 4 batteries. LoL!! =.P
I bought something "like" this. Looks very much alike except it wasn't from China and it had a 1A and 2.1A port. And I have no idea where "solar" is even coming from. The one I have has nothing "solar" about it. LoL!!
http://www.ebay.com/itm/New-5000mA-...ccessories&hash=item2c650dd34a#ht_2856wt_1197
Click to expand...
Click to collapse
Do solar powered battery packs like that even exist?

What's the big deal with wireless charging?

Warning: When I make this post, I have no intention of being rude. Moving on.
Lately I've seen lots of posts like, "Wireless charger, cheap on Amazon!" and "Wireless charger, 40$!" Ok, thanks for finding these things for us! But is wireless charging practical? Why is wireless charging being made such a big deal? Persononaly, I cant justify avoiding the phones intended function, just to charge wirelessly. Not to mention, I have to pay 40+$ for said wireless charger. I mean really, is it that important to "preserve the USB port"? On the other hand, I do think wireless charging is a neat idea, but only that.
So I guess my question is, are there reasons that make this worth my money? What are they?
Sent from my Nexus 4 using Tapatalk 2

Laziness and neatness for me. It's less work to place it on a wireless charger than to have to find the usb cable and plug it in. Plus it eliminates the eyesore of having an unplugged USB cable right next to my bed all day.

It's great that Google included it for those who have a use for it but I have to say I'm with the OP. It just doesn't make much sense to me to have to buy an expensive device that takes up space to save a few seconds spent plugging the device in once a day. Different strokes for different folks, eh. Plus I'd have constant paranoia about whether the device was actually going to keep charging while I sleep (irrational, I know. Nobody said I had to make sense.) That's why we love Android (or not, for the trolls lol)

nbell13 said:
Laziness and neatness for me. It's less work to place it on a wireless charger than to have to find the usb cable and plug it in. Plus it eliminates the eyesore of having an unplugged USB cable right next to my bed all day.
Click to expand...
Click to collapse
Yeah, I guess that's reasonable... But is it really worth 40+$ to save yourself a few seconds everyday?
Sent from my Nexus 4 using Tapatalk 2

Alot of Nexus 4 users upgraded from the Gnex. The Gnex had a horrible USB port. If you go to the Gnex Q&A section and search for bad USB port you will get easily over 100 threads. And although the Nexus 4 is obviously a different manufacturer, it was enough to make us paranoid. Add the paranoia to the fact that wireless charging is just cool new technology definitely makes it worth $50 TO SOME people.

I like cables. Seriously. Cheap and reliable. But that's just me.

I think the idea of them is great, but they just aren't for everyone. I'd love one, for the visuals but in all honesty, I have no reason to own one. For one, I don't even have a good surface I could put it on, most of them have something on or are not near a plug socket.

The wireless charging orb from Google advertises charging the Nexus4 in 4 hours.
In my experience the wall charger does it in about 2 hours.
I've been using my Nexus4 for navigation in my car. A car mount with wireless charging
indeed sounds great - plugging and unplugging the USB port in the car is uncomfortable.
But I discovered that with the GPS on and the screen at high brightness the phone
can not be properly charged with a 0.5A car lighter adapter. 2A ones do work.
So I wonder if a wireless charging car mount is even a possibility. It is questionable whether it
can pump the necessary power to run the phone in such a demanding application.
Mind you my setup can get pretty hot at times on the USB and it's the dead of winter in here.

Qi charger questions

Hi I am very tempted to purchase a wireless charger to use with my wonderful nexus 4, however I have a few questions. Firstly does it charge the phone to 100%? I've heard people saying that it stops at 80%. Secondly what is the wireless charger wake lock in 4.3 people have been talking about? Thirdly can anyone recommend a cheapish wireless charger that I can easily purchase in the UK? I would appreciate anyone with a wireless charger to answer with there views. Sorry if this has already been asked I did search but I couldn't find a thread that answered my questions. Thanks in advance

I'm using a Nokia DT-901 wireless charging stand and although its not that cheap (£50) the Nexus fits on it perfectly, it charges to 100% and you can see the screen better when it sits on the stand.

After looking at what you said the nokia DT 900 looks very tempting for £20 less. What are the differences between the 900 and 901?

I have those cheap eBay qi charger.. Charges my phone 100%...
Nexus 4 - PA rom and franco kernel

gd6noob said:
I have those cheap eBay qi charger.. Charges my phone 100%...
Nexus 4 - PA rom and franco kernel
Click to expand...
Click to collapse
Hi!
Do you have THIS CHARGER?. Or something like that?

This is the one I have...
http://www.amazon.ca/Position-Inductive-Wireless-Qi-enabled-Charging/dp/B00D8XKPRE/ref=sr_1_12?ie=UTF8&qid=1382043826&sr=8-12&keywords=qi+charger

To answer your first two questions:
1. I believe it depends on your wireless charger as to how it behaves. The one I've got charges to 100% and then will continue to check the status of charge and essentially continue to trickle charge after hitting 100% so that it stays around that level. I have heard of people saying that once theirs charges to full the charger "turns off", and doesn't keep the battery at "full".
2. As I understand it, the wakelock is to do with a process that runs in the background searching for the wireless charger. It doesn't allow the phone to fully go into deep sleep and thus the battery drains pretty quickly. It's the reason I haven't used my wireless charger in a while - I couldn't be bothered rebooting my phone to kill the process most days.
As for cheap wireless chargers in the UK I can't really answer as I don't live there.
Hope that helps.

No fast wireless charging option? Wtf?

Hey guys, one of my co-workers has a S8 (Cricket). He just noticed that under his settings in the battery section, there is no toggle to enable Fast Wireless Charging under the Advanced options.
I've been searching here as well as in Google for any answers. I've seen a thread or two randomly on other forums, one was a VZW customer who apparently found from their customer service, that there was a known issue on some devices and the fast wireless charging option was removed. Not sure if this was in a series of production, maybe earlier production devices? That specific thread was from the beginning of Dec 2017.
I've really found no concrete answers, and actually don't get anything when I search that is specific to Cricket Devices. I've got an ATT S8+, and I have the option and actually use fast wireless charging every night.
Hoping someone knows a way to force it back, or if this is something to be fixed by Samsung?
***EDIT - I just realized that my boss doesn't have fast wireless charging either, she hasn't been able to use the fast charger we got her for Christmas. She has a Vzw S8+.
TIA

It's available after first use with a fast wireless charger. Just put it on the charger and it will be there. Hope this helps.
Sent from my SM-G950F using Tapatalk

Invincible29 said:
It's available after first use with a fast wireless charger. Just put it on the charger and it will be there. Hope this helps.
Sent from my SM-G950F using Tapatalk
Click to expand...
Click to collapse
We put it on a known working fast wireless charger, no dice. It was actually tried for a short period (30 minutes) and then completely charged on a fast wireless charger overnight. Option still isn't there, nor did it fast charge ever while on the charger.

Anyone else have a suggestion?

Use proper Fast Wireless Charger, like Samsung one. Also with proper strong charger connected to wireless charger...

qpkqkma said:
Use proper Fast Wireless Charger, like Samsung one. Also with proper strong charger connected to wireless charger...
Click to expand...
Click to collapse
Yes that's correct
You need a fast wireless charger which is plugged in with a fast or quickcharge adaptor otherwise it won't work
Sent from my SM-G950F using Tapatalk

LXative said:
We put it on a known working fast wireless charger, no dice.
Click to expand...
Click to collapse
Which one?

On mine it's just a matter of whether or not it's plugged into a fast charging brick. If I want slow charge, I use a charger other than the one that came with the phone. Works on my Verizon S8+ no problem

peachpuff said:
Which one?
Click to expand...
Click to collapse
Choetech, using a fast charging brick and cable from a Samsung S7. Works fine for my ATT dev, have tested with another ATT dev (Note 8) and it worked fine on it as well.

I use the following. Cheap and cheerful. Plus all of them are fast.
https://forum.xda-developers.com/showthread.php?t=3695067
Sent from my SM-G950F using Tapatalk

It's Not the Charger, block/travel plug or lead.
I am, and always have been a loyal Samsung user since the (slide up) D500 which I still have btw.
Had every other S model as my provider contract is over 18 months so tend to miss a model. S4, S6 now on S8+ and had charger port issues with them all. So Samsung changed the port, and lead to one that even an idiot like me can plug in whilst driving in the dark without breaking it. Imagine my surprise and disappointment when my S8 stopped fast charging. As the title states, I have only ever used the charger and lead supplied with the handset and after past issues am ULTRA carefull when charging.
So I bought a Samsung (EP-PG9201) wireless fast charger. Using S8's f/charger block + lead from my S6 placed S8 on it and yeah, it charges but no fast charge? Followed all the settings advice but no Accessories option in Advanced Features, Device Maintenance, Battery, Advanced Settings but no wireless charge option (fast or otherwise) Yet prior to my purchase I checked these settings to see if S8 was compatable and the wireless option was there but greyed out but now it's gone!?!
Soz for the waffle but IT'S WOUND ME UP 100% Any help or advice that doesn't include charger, block, lead, settings, phone case or software updates would be greatly appreciated.
Thanks in advance guys
Blacksnake

It works..!!!
Thank you... It actually works.