[Q] Mod for Charging via Power Pack - Galaxy Tab General

OK.
I have read the Accessories Posts, but didnt found an Solution for this.
I own an 5000mah Power Bank with USB Connectors.
Output 1A.
So, as you Guys know, if i connect such Device via USB-Data Cable it is detected by Tab as "PC-connected" and the Tab does not charge. If Tab is off, it charges quick and i am able to charge it with one Power Bank Load 1 1/2 Time.
And with my Galaxy S it works also if the Phone is on.
So my Question.
Is there any Tweak, Trick or Mod to enable the Tab to Charge it this Way?
Is it possible to modify some System settings to bring it work?

Have you checked in settings, if the battery charge doesn't go up?
It will charge using any current (even 300mA) only slower. The icon on the battery just says "I'm not connected to my proper charger", not "I'm not charging".
On JM6 and JMA the icon is also a bit better and show's it's charging but not full speed But charge rate is same as before.

TarjeiB said:
Have you checked in settings, if the battery charge doesn't go up?
Click to expand...
Click to collapse
Yes.
I am also using Battery Pro that displays me an Icon with Battery Load in Percent.
But the Tab doesnt charge.
Load of Akku decreases.
Yes. (Having JMA) the Stock Icon displays that an Power source is connected but still doesnt charge at all.
My Hope was, that anyone with Programming/Coding Skills is able to bring the Charging to work.
I am not nearly able to do this
I find it absolutely bad, that Samsung has made this incision to the usability of the Tab.
On my Galaxy S i can change with the same Power Bank in Operation without any Problems.
Very Pity that the Tab does not

pbruck said:
OK.
I have read the Accessories Posts, but didnt found an Solution for this.
I own an 5000mah Power Bank with USB Connectors.
Output 1A.
So, as you Guys know, if i connect such Device via USB-Data Cable it is detected by Tab as "PC-connected" and the Tab does not charge. If Tab is off, it charges quick and i am able to charge it with one Power Bank Load 1 1/2 Time.
And with my Galaxy S it works also if the Phone is on.
So my Question.
Is there any Tweak, Trick or Mod to enable the Tab to Charge it this Way?
Is it possible to modify some System settings to bring it work?
Click to expand...
Click to collapse
Hi Pbruck, which power pack are you using & what's the specification for it. can you provide me with the model no.? Thank you.

Hi,
i use this:
http://www.pearl.de/a-PX5398-5542.shtml
Sorry, but have only found it in this German Shop.
Maybe you can still use the provided Informations there.
Babelfish Translation:
http://de.babelfish.yahoo.com/trans...X5398-5542.shtml&lp=de_en&btnTrUrl=Übersetzen

It says "1A (2x usb)" so you need to use 2 ports to get to the 1A.
There is no programming or modding necessary, the tab charges from anything that is powerfull enough and your crappy cheap charger is not (im just teasing you cause i ordered things from pearl before and all they sell is junk).

Related

Impossible to charge sg2 in car

Hi all, just came 3 days ago from an htc hd2, and so far I am more than happy with it.
I have only one complaint and maybe you guys will help me sharing your experience : I can't charge this phone in my car while using gps.
It seems that the power adapter is not powerful enough to charge the phone screen on.
The car charger has a 5v 1000ma output, more than the regular wall charger provided by Samsung and it was working well before with my HD2 so I have no clue about this problem.
Did you experience that issue too, else can you share what car charger do you use?
try to buy new standard car charger with micro plug.. 13 eur and you will be saved..
Sent from my GT-I9100 using XDA App
Charger doesn't matter unless the phone is dropping into USB charging mode - phone limits to around 600-650 mA by default.
Custom kernels can bump this limit up for I9100 users. I777 users are screwed - we've got a crippled charger chip.
I had the same problem, I used the samsung one, useless, so I used my iPad charger, which is 2A, and charges the iPad quick, still useless. We drove from Bathurst NSW, down to Melbourne, about 10 hour drive, plugged in all the way using GPS, and about an hour from home, the connect to charger warning came on!! So once I stopped GPS, it started taking charge. Looks like when the phone is in use, it draws more then it takes charge, plus I read somewhere on here the phone is limited on the charge it takes, so using the 2A does nothing different then the stock 500mA charger.
I always had this problem with my Nexus One, although they are different phones, the problem is the same, uses more power then it can recharge in USB mode.
After trying 3 or 4 different charges I remember that I found one ultra-cheap 'made in taiwan' from a street seller that worked very well.... so it's kind of a lucky shot!
good luck!
Im using a genuine Samsung SGS2 charger and I can charge and run Sygic just fine. I started my journey with 80% and 40mins later I was up to 91% when I stopped and got out. (not in aeroplane mode..)
Very interesting feedbacks... So that confirm that is clearly not a matter of output amperage power.
It is now the same problem on the galaxy tab 10.1, for quickly charge this tab you need the Samsung compatible usb adapter.
It can be likely with a tab bringing a proprietary plug, but I didn't thought it will be the same with a Samsung phone bringing a regular micro usb plug. Quite frustrating and disappointing!
I will search around a micro plug car charger as suggested by redzion, but actually I don't clearly see the difference with my usb charger + a micro usb cable.
Double post, sorry.
If I use the usb cable from my cd player I have the same problem but if I use the official Samsung car charger Ithe only problem I have is the phone getting stupid hot
Sent from my GT-I9100 using xda premium
Oh Samsung, when you will understand?!
Samsung DOES follow the USB charging standard - it goes to its highest current setting when a charger that follows the standard is connected.
Note that iPad/iPhone chargers do NOT follow the standard - Samsungs will treat these as USB hosts and limit to 450 mA instead of 600-650.
Modified kernels can increase both of these values on I9100s.
The only thing Samsung really did **** up is counting screen/CPU current usage against the charge current limits - that's just stupid.
So the charger has smarts. On the i9000 factory chargers, the data pins were bridged. Bridging these pins manually on a USB cable when connecting to a USB source (such as a PC) enabled full current charging. You can see this in Settings -> About; it will say either USB or AC charging.
Do you think this is the case with the i9100?
I don't condone testing this theory on your i9100. Increasing the max current via custom ROM may be a safer solution.
I had the same problem. Two things fixed it for me:
1) I bought this charger: Sony Ericsson AN300 Micro USB 10€
2) I am using a custom kernel now
Any charger that is rated at 1000mA or more (per port) will do just fine. The problem is the cable - you need a quality microUSB cable, or it won't provide all the juice you need. I had the same issue, and I swapped three chargers until I found the real culprit.
Try with the charger you have now and the mUSB cable that was in the phone box - it should work well with that one.
I just press the power button to turn the screen off. when i need the sat nav i press the power and it still tracks you so there is no delay. With the screen off it does charge.
same problem
Duffman19 said:
I just press the power button to turn the screen off. when i need the sat nav i press the power and it still tracks you so there is no delay. With the screen off it does charge.
Click to expand...
Click to collapse
You are right, but even if it is better than nothing the charging time is still a big problem.
Yesterday I drove for at least 40mn phone off. Arrived to destination, I turn the device on: it charged only from 0 to 5%
I would like to test the mariusi theory concerning the Samsung micro usb cable, unfortunately on my SgsII box I just have a wall charger, no a microusb-usb cable.
Entropy512 said:
Samsung DOES follow the USB charging standard - it goes to its highest current setting when a charger that follows the standard is connected.
Click to expand...
Click to collapse
Is there a way to know before buying if the charger respect this charging standard?
I have some cheap usb chargers here and no one is a fast as the one provided by Samsung.
Entropy512 said:
The only thing Samsung really did **** up is counting screen/CPU current usage against the charge current limits - that's just stupid.
Click to expand...
Click to collapse
Maybe for safety purpose? Gps phones can become very hot behind the car glass.
Samsung are trying to "encourage" you to buy only their official accessories. To do this they've wired something differently in their chargers and cables. This "problem" exists on the Galaxy Tab too and can be solved with this adapter...
http://www.ebay.co.uk/itm/USB-car-w...ccessories&hash=item2c5c07736b#ht_3084wt_1163
It's cheap and turns a trickle charge into a full charge. I don't know the specifics of what they've done, but their USB charging just isn't the same as most others manufacturers.
Archer said:
It's cheap and turns a trickle charge into a full charge. I don't know the specifics of what they've done, but their USB charging just isn't the same as most others manufacturers.
Click to expand...
Click to collapse
Great find.
Pretty sure it just bridges the data pins.

Thinkpad tablet slow charge analyzed

I have TPT for 10 days now.
I have usual iisue with USB charging. When used like standard smartphone = put it to charger overnight. Not usable anyway. Charge rate about 5% per hour, which means 20 hours per full charge???
I even consulted it with local technical support. I was adviced to buy docking station with external power adapter .....
So ... I took regulated power supply, made a USB socket connected to it and started to measure
.. and look what I found
When device is switched on, usb power oscilates sligthly under 1000 mA. It is NOT using all available power of 2 Amps of stock power adapter!!!!!
But ... when I power the device off using power button. The current goes down to 300mA for about 5seconds and then raises to full 2 A!
Conclusion? It seems like control issue of the charging ciurcits. What if we can enable full 2A power even when turned on? SW issue?
Is there any chance, how to instruct internal power circuity to use all available power? ADB?
Well I guess that explains the slow charging that people have been reporting. I picked up a dock for my tablet from amazon for about $30 shipped. Now I just put my USB charger in my bag for when I am out and about and dock it when I get home. That being said when I was charging via USB before I had the dock, a full charge seemed to take about 6 hours or so.
As for your question regarding modifying the input charging rate while powered on, I am not sure that can be done via ADB. I am taking a stab in the dark here, but I wouldn't be surprised if the charging rate was hard coded into the power circuit. Which would make some sense so as not to draw to much power if someone wanted to try and charge their tablet while having it plugged into a laptop or USB hub. I am not sure if it has an auto sense capability to determine whether or not it is charging via USB from a port or from the power adapter. I do know when I hook it up to my computer to transfer files it offers me the option to charge via USB, but I think that is a software thing and not hardware. I could be wrong. Maybe if we had access to the board schematics I could figure out. I can read schematics and might be able to figure it out.
Any chance you could get a proper reading via the docking port on the tablet? I would be curious to see if it is always at 2A. I haven't counted the pins but I don't see why you would need more than VCC+, VCC-, GND and maybe a sense line. But I know there are more than 4 pins.
Sent from my ThinkPad Tablet using xda premium
I would say this is a SW issue. Maybe if we had the kernel source code someone could cook up a custom kernel with that control feature tweeked.
Temetka said:
~
Any chance you could get a proper reading via the docking port on the tablet? I would be curious to see if it is always at 2A. I haven't counted the pins but I don't see why you would need more than VCC+, VCC-, GND and maybe a sense line. But I know there are more than 4 pins.
~
Click to expand...
Click to collapse
The best thing to use is a watt meter if anyone wants to pursue this.
My findings indicated that the dock has a similar issue as the USB charger when the TPT is on.
Maximum current allowed at the dock connector was measured at just over 1A . Dock should charge the battery at a maximum rate of just over 1% per minute provided the battery charge level is below 70%. So if you discharge the battery to around 50% and compare charge rates you should see the difference between TPT on/off.

Charge tab 2 via usb!!!

As we know that we can not charge tab 2 via usb when connected to pc.
But there is a way:
do not insert whole usb to port at once.slowly insert the usb(connected to tab) to port(of pc) upto its approx 1/2-3/4 portion.you will see charging symbol on tab battery icon.it may take some time to figure it out.but it works.....
Note:it works on p3100 for sure and may work other models.
ENJOY!do not forget to hit thanx button...
a video demo how to do this should help :cyclops:
it works! thanks for the tips
i charged my tab via my computer. although it has an x above the battery it still charges.
mad5870 said:
i charged my tab via my computer. although it has an x above the battery it still charges.
Click to expand...
Click to collapse
no buddy if tab shows a x on battery that means it is not charging and tab is connected in kies/media device mode.but he you follow above method tab will show charging on battery.
I charge mine, with my galaxy note charger
Sent from my GT-P3100 using xda app-developers app
I jus got my tab 2 but it charges through usb... no tricks needed... it's slow though
cheers
B
berre said:
I jus got my tab 2 but it charges through usb... no tricks needed... it's slow though
cheers
B
Click to expand...
Click to collapse
which model you have?
I swear mine charges through the usb hooked up in the usb ports in the back of my desktop. I'll check in the am when we get a blown transformer fixed and the power back on. It's 99 degrees and will be a long night. :banghead:
Sent from my HTC One X using xda premium
Mine charges even when it has a x on the battery......
Sent from my GT-P3113 using XDA Premium App
Even mine charges....I have GT P3113
Droidlover123 said:
which model you have?
Click to expand...
Click to collapse
P5100
cheers
B
I wanted to add a clarification: when plugged into USB the notification popup indicates "discharging". But in fact it is charging, because the % charge goes up (slowly) with time.
The trick mentioned in this thread may make the tablet show 'charging', but I doubt that it makes any difference to whether it is really charging or not. The charge rate is determined by the max amps of the charger. The supplied Samsung charger is rated approx 2A; if you use the USB from the iPhone charger it is approx 1A (if you have USB 3.0 ports, that is also about 1A); but USB 2.0 gives you only 0.5A.
As said...charging over USB is painfully slow (2,5-5W). I prefer to charge it with the original adapter (10W )
Chuckles960 said:
The charge rate is determined by the max amps of the charger. The supplied Samsung charger is rated approx 2A; if you use the USB from the iPhone charger it is approx 1A (if you have USB 3.0 ports, that is also about 1A); but USB 2.0 gives you only 0.5A.
Click to expand...
Click to collapse
The tablet or phone will sense if the connection to the charger is AC mode or USB mode, if AC mode is detected then the tab will pull up to ~2.1 depending on the available rate from the charger, if USB mode is detected than the tablet will only draw ~0.5A.
The way the charger is configured will let the device know if it is an AC mode charger or if it is an USB mode charger.
By shorting pins 2 and 3 together on some chargers/cable the device will detect AC mode and it will pull more current.
I have a 1A 12V car charger that was wired for USB, an android device will see it as USB and pull only 0.5A, but an Apple device will pull the rated 1A. I shorted pins 2 and 3 and now android devices pull up to 1A, I am not sure but I think it is no longer compatible with apple devices (I don't own one).
It will say that it's not charging when plugged in via USB, but if you have it plugged in, it will charge, slowly. It takes forever if you're anywhere close to having a dead battery, and if you have wifi and other stuff turned on, it will take even longer but it should work, no tricks needed.
Thanks! Works on the 3113. It's shows charging and doesn't show as media device on the laptop. Nice find.
Hi.
I have a couple of these usb adaptors, see link below, I bought them years ago for the original 7" galaxy tab but i never used them.
If i plug my tab2 into an usb2 port i get the red cross on the battery icon, so i tried one of these adaptor and my tab2 is charging from an usb2.0 port on my notebook and according to battery monitor widget pro at 14% an hour, and i have a lightning bolt sign in the green battery icon.
I did a search for the adaptor i bought and i think i have found it for £6.50 each, see link below.
http://www.mytrendyphone.co.uk/shop/samsung-p1000-galaxy-63928p.html
John.
the tablet charges anyway so the icon says no
In 4.0.4 rom the charge icon its fixed, anyway charge by USB is too, too slow, only use for emergency
Droidlover123 said:
no buddy if tab shows a x on battery that means it is not charging and tab is connected in kies/media device mode.but he you follow above method tab will show charging on battery.
Click to expand...
Click to collapse
not trying to be a smartass but i know when my tab goes from 5% to a 100% while plugged in to my computer its charging. and yes still had the x.
Sent from my SPH-D710 using xda app-developers app
Mine P 3100 international version even x on battery while usb connected but still its slowly charging this occurred aso to tab 1 and tab 10.1 SII and note

Charge from USB

I figured I would share this since I have not found another thread with this info.
The Galaxy Note 10.1 will charge from usb.
I find this interesting because no tablet, at least none I have known, will do this. They all need to be actually plugged into a wall outlet to charge. However, my note 10.1 has charged from around 13% to 32% plugged into USB. Now, mind you , it doesnt charge very fast, but it does charge.
For some this won't matter. In my case, that 3 ft cord doesnt go from the floor outlet to my desk at work too easily, but the usb will plug in very easily and reach where I need it too. At the very least, it will add a little more time to the length of the batter. I work a 10 hour shift, not adding in the hour for lunch, and I can usually made it about 8 hours. So this may get me the extra two hours I need...hopefully.
phoenixbennu said:
I figured I would share this since I have not found another thread with this info.
The Galaxy Note 10.1 will charge from usb.
I find this interesting because no tablet, at least none I have known, will do this. They all need to be actually plugged into a wall outlet to charge. However, my note 10.1 has charged from around 13% to 32% plugged into USB. Now, mind you , it doesnt charge very fast, but it does charge.
For some this won't matter. In my case, that 3 ft cord doesnt go from the floor outlet to my desk at work too easily, but the usb will plug in very easily and reach where I need it too. At the very least, it will add a little more time to the length of the batter. I work a 10 hour shift, not adding in the hour for lunch, and I can usually made it about 8 hours. So this may get me the extra two hours I need...hopefully.
Click to expand...
Click to collapse
Hmm, I think mine claims not to (it puts an X on the battery icon), but I didn't leave it plugged into my computer long enough to see whether it charged or not. I think all tablets can potentially charge via USB port on a PC, it's just that most disable it out of the box but eg. for the Galaxy Tab 10.1 custom kernels could enable charging over USB.
iofthestorm said:
Hmm, I think mine claims not to (it puts an X on the battery icon), but I didn't leave it plugged into my computer long enough to see whether it charged or not. I think all tablets can potentially charge via USB port on a PC, it's just that most disable it out of the box but eg. for the Galaxy Tab 10.1 custom kernels could enable charging over USB.
Click to expand...
Click to collapse
Mine also puts the RED X over the battery icon whether I try to charge it through a PC USB port or other USB charging port other than the Samsung adapter (Goal Zero 150 usb port and Panatech 10000mah external USB battery pack). The tablet shows that it is charging when i view it using GO POWER MASTER app. Watched it for 5 minutes but with WIFI off, it still dropped from 88% to 87%. I am however using the stock kernel.
It charges faster if you have the screen off. The usb gives more or less what you need to keep it running with the screen on.
Skickat från min GT-I9300 via Tapatalk 2
Mine put the red X on the battery icon as well, but still charged. I had to have the screen off.
I had mind plugged into my USB 3.0 port (which should really make a difference) to transfer some files, and then just left it plugged in and it charges. Its definitely a trickle charge, but I am glad to see it does this, as my a500 did not.
When I transferred 40Gb of data to the mSD via MTP (screen off) and called up the batt-graph after disconnection it showed me a fair charging rate. Not stunning but at least a noticeable charge ( from 63% to 82% in three hours).
So it does charge the battery, in spite of the red X?
Yes it does, albeit very slowly.
You guys are misinterpreting the red x. Just got off the phone with Samsung. The x stands for "extra awesome charging". I swear.
Sent from my GT-N8013 using Tapatalk 2
phoenixbennu said:
I figured I would share this since I have not found another thread with this info.
The Galaxy Note 10.1 will charge from usb.
I find this interesting because no tablet, at least none I have known, will do this. They all need to be actually plugged into a wall outlet to charge. However, my note 10.1 has charged from around 13% to 32% plugged into USB. Now, mind you , it doesnt charge very fast, but it does charge.
For some this won't matter. In my case, that 3 ft cord doesnt go from the floor outlet to my desk at work too easily, but the usb will plug in very easily and reach where I need it too. At the very least, it will add a little more time to the length of the batter. I work a 10 hour shift, not adding in the hour for lunch, and I can usually made it about 8 hours. So this may get me the extra two hours I need...hopefully.
Click to expand...
Click to collapse
Interesting, because every tablet I've owned (Tab 10.1 and Nexus 7) behaved like this.
They will charge VERY slowly on USB - and will likely not charge at all if the screen is on due to the total unit power consumption being >500 mA.
Entropy512 said:
Interesting, because every tablet I've owned (Tab 10.1 and Nexus 7) behaved like this.
They will charge VERY slowly on USB - and will likely not charge at all if the screen is on due to the total unit power consumption being >500 mA.
Click to expand...
Click to collapse
Same here. iPads, nook color, Samsung tablets, all say not charging but do trickle charge if you are doing anything to drain it faster than thenusb can supply. It takes around 8 to 10 hours to charge my gt101 through regular USB 2.0.
mitchellvii said:
You guys are misinterpreting the red x. Just got off the phone with Samsung. The x stands for "extra awesome charging". I swear.
Sent from my GT-N8013 using Tapatalk 2
Click to expand...
Click to collapse
Bwahahaha... A friend of mine posted on twitter that Apple should make something that lets iDevices charge each other... Ours actually can because of USB host! I actually lost the usb host adapter for my old galaxy tab so I need to get a new one but I had one for my gs3, and it does charge my tablet. But the reverse is clearly more useful.
Sent from my SCH-I535 using Tapatalk 2
Tested again when attached to Notebook by USB:
Screen on at max. Brightness and working: batt charge stays level
Screen off: batt charges approx. 5% per hour
Tested on GNote charger (1A output)
Screen on : charging very slowly (approx. 3% per hour)
Screen off: charging approx. 8% per hour
Tested on iPad charger:
Slower than original charger although max. Output:
The more items you have attacht to your computers USB the less power it has to allow your tablet to draw for charging.
donec said:
The more items you have attacht to your computers USB the less power it has to allow your tablet to draw for charging.
Click to expand...
Click to collapse
I don't think this is the case. The USB ports provide a set power output, and not variable by available power supply type of output.
phoenixbennu said:
I don't think this is the case. The USB ports provide a set power output, and not variable by available power supply type of output.
Click to expand...
Click to collapse
You are correct they are not variable but they only have a given amount ofpwer available and if you are drawing the max and add another device that needs more power to charge the power will not be available.
donec said:
You are correct they are not variable but they only have a given amount ofpwer available and if you are drawing the max and add another device that needs more power to charge the power will not be available.
Click to expand...
Click to collapse
Of course, everything has a limited power availability, USB ports being no exception, whether having their own psu or bus powered or whatever your setup may be, but unless you are doing something beyond practical use or have a poorly designed setup, than this should not be a problem. I know some systems out there, the mac book pro for example, specific limits USB power output between ports by design (you may even call it variable haha...but by design). However, in a general sense, you should not have a power output issue with simply plugging in for usb charging., even if all other ports are used up as well. So don't daisy chain, or do anything like that. Practical use should be fine. I personally hook my usb charged devices, like my phone, to my monitor at work. It was a few usb ports on the side, and it works great. Also, it keeps me from having to deal with all the annoying security popups that go with plugging it into the actual computer.
In a probably unfunny but still remotely amusing anecdote, I remember the massive work I put my a500 through. I used to have a usb hub attached with 2 1tb portable hard drives, a keyboard, a mouse, my phones, and more all charging directly from USB. Never had trouble with power issues, aside from quicker draining of the battery. lol.
does anyone know if charging is possible when you use an Y adapter on USB-OTG to hook up an external harddrive and a charger at the same time?
cproaudio said:
does anyone know if charging is possible when you use an Y adapter on USB-OTG to hook up an external harddrive and a charger at the same time?
Click to expand...
Click to collapse
Barring any specific device hardware limitations, it is possible to do data transfer and power transfer at the same time using a y cable. Its essentially the same thing as using a usb hub, except you only have two ports instead of 4 or more.
As for actual practical use on the note, I have not tried it out, and I am not aware of any limitations built into software or hardware to prevent it. So, I do not see you having a problem with it.
Almost all tablets can charge through regular USB2 if they're sleeping (or better - powered off).
USB has power limits (USB1.1 is 100mA, USB2.0 is 500mA and USB3 is 2A) BUT these are the 'minimum maximums', if you will. That is, these are the current source *required* for certification. It's entirely permissable for a USB port to provide as much current as it wants - it just can't be limited to *less* than these amounts.
USB 2.0 and later ports are also supposed to implement 'overcurrent' warnings if the device is taking more current than the port can provide..
That's why, for example, some ports can drive a CDROM or external HD drive without a problem - while other ones can't.
The Note 10.1 needs a little over 2A @ 5V to charge at a reasonable rate.
One other note, if you let your battery drain very low, then the lower current of most USB 2 ports won't be enough to charge it even if it's off. The charge current curve isn't linear.

Need help getting enough battery power to use MHL adapter with i9506

I need to have an MHL adapter connected to my Samsung Galaxy s4 i9506 which mirrors it's screen to a monitor/info screen indefinitely, but the problem is that an MHL adapter outputs a measly 300mA (Tried lots of chargers but the output never changed) which is nowhere enough. I did some research and found out that I can up that number by installing a custom ROM that enables fast charging so tried that with my other phones doing the same task that are i9505 and SGH-M919. I managed to install a custom ROM that enabled fast charge through STweaks which upped the output all the way to 1000mA, but I haven't been able to find out a ROM that enables the feature for i9506. I tried LineageOS 14.1 which should have fast charge enabled by default, but when I used Ampere to check the charging current the output was 300mA, so I assume that fast charge didn't get enabled.
Does anybody know a ROM, that enables fast charge for i9506, or how I could scrape by with that measly 300mA when the only thing the phone needs to do is to mirror a web page to a monitor. Chrome cast isn't an option, because if the connection drops you need to manually connect it again, and since the phones should be operational for months without rebooting the connection is bound to drop sooner or later.
That's​ a kernel thing. So, unless you find a kernel for the I9506 that supports 1000 mAh USB charging, you're out of luck in this regard.
I guess the only way to survive with 300 mAh would be to turn the screen off, otherwise the phone will use more power than it receives.
Another solution would be wireless charging. I think this is your best bet.
Is there an app that I could use that timers off the screen during the night and then wakes it in the morning? There are a lot of apps that let you time music and other apps, and even turn off the screen, but I haven't found one yet that could also wake the phone up later.
nyoatype said:
Is there an app that I could use that timers off the screen during the night and then wakes it in the morning? There are a lot of apps that let you time music and other apps, and even turn off the screen, but I haven't found one yet that could also wake the phone up later.
Click to expand...
Click to collapse
Maybe Tasker.
@nyoatype
I'm searching for same as you.
Having mhl adapter (which is original as i think, working without power source and resolution is 1080p60). After connecting to AC 1.2A max charging power for phone (I9505) is only 300mAh, on original Samsung charger 2.1A is little bit more - 400mAh but obviously it's still not enough for me. Power output doesn't change even after enabling USB fast charging (700mAh or 1000mAh, doesn't matter).
I was looking to kernel source https://github.com/Slim80/Imperium_...ter/arch/arm/mach-msm/board-fusion3-battery.c
where are defined values of charging for MHL 500/MHL 900/MHL 1500 (phone probably can detect which one is plugged) but after increase charge_current_max and charge_current for every MHL type I do not see any difference unfortunately, so I'm searching still what's is going on and where i can increase power output from MHL to phone.
I'm searching for a way to change resolution of MHL video output too, so if anyone kernel master can follow me a little bit, will be great (maybe here https://github.com/Slim80/Imperium_Kernel_TW_5.0.1/blob/master/drivers/video/msm/external_common.c in line 40 -
HTML:
int hdmi_forced_resolution = - 1 ;
)
PolishVodka said:
@nyoatype
I'm searching for same as you.
Having mhl adapter (which is original as i think, working without power source and resolution is 1080p60). After connecting to AC 1.2A max charging power for phone (I9505) is only 300mAh, on original Samsung charger 2.1A is little bit more - 400mAh but obviously it's still not enough for me. Power output doesn't change even after enabling USB fast charging (700mAh or 1000mAh, doesn't matter).
I was looking to kernel source https://github.com/Slim80/Imperium_...ter/arch/arm/mach-msm/board-fusion3-battery.c
where are defined values of charging for MHL 500/MHL 900/MHL 1500 (phone probably can detect which one is plugged) but after increase charge_current_max and charge_current for every MHL type I do not see any difference unfortunately, so I'm searching still what's is going on and where i can increase power output from MHL to phone.
I'm searching for a way to change resolution of MHL video output too, so if anyone kernel master can follow me a little bit, will be great (maybe here https://github.com/Slim80/Imperium_Kernel_TW_5.0.1/blob/master/drivers/video/msm/external_common.c in line 40 -
HTML:
int hdmi_forced_resolution = - 1 ;
)
Click to expand...
Click to collapse
I used this ROM to up up my numbers with i9505 to 500mAh-640mAh depending on charger and mhl adapter, so if it's of any help to you you can try it. Let me know if you find anything that could be of use : D https://forum.xda-developers.com/ga...dcteam-android-source-project-mra58v-t3251663
Is there any way to wake phone up with a timer? For example make the phone wake up every morning at 8 o'clock? I'm using automate to put the phone to sleep at a fixed time, but waking it up doesn't seem to be as easy (The timer block in automate actually has a checkbox with description "Awake device", but it doesn't actually wake the phone up).
nyoatype said:
Is there any way to wake phone up with a timer? For example make the phone wake up every morning at 8 o'clock? I'm using automate to put the phone to sleep at a fixed time, but waking it up doesn't seem to be as easy (The timer block in automate actually has a checkbox with description "Awake device", but it doesn't actually wake the phone up).
Click to expand...
Click to collapse
I already told you to try Tasker. Did you do it?
Pwnycorn said:
I already told you to try Tasker. Did you do it?
Click to expand...
Click to collapse
I haven't yet added a payment option to Google store (Since this is work related and I'd need to use the companys payment information) so haven't been able to try Tasker. I'll try it when I'm able to get my boss' approval.
I'm also trying to do some physical changes to one of the MHL adapters to bypass it, so that the current would come straight from the charger. This means I'll cut the Power and GND (red and black wires) of the microUSB cable connected to the phone and connect them in parallel with the red and black cables going to the MHL adapter. I'm not sure, but this might cause the MHL adapter get power from the charger, but instead of supplying the power to the phone, the phone would get it's power straight from the charger (although it would still be USB-charging since the data pins are being used, but that wouldn't matter since I usually get 1000mAh when USB charging with computer).
Another possible solution is to use wireless charging pad, because I read that if the USB-connection uses MTP or PTP the wireless charging will take priority, so the data would go through the USB but the power would come from the wireless charger. I'm not sure about this because I read it from another forum post, so if somebody could confirm/deny it I would be seriously grateful!
Thanks for your replies and suggestions so far! This is one heck of a situation I've been put into so I really appreciate the help!

Categories

Resources