[Q] power on battery android - Android Q&A, Help & Troubleshooting

Hi All,
i removed battery from my rooted android tablet, now i would like it power on when i connect a power supply to battery wire.
Now when i connect the power supply, i have to click the power button to power on the device. I found a work around to replace the battery charging icon with a script, and the device power on when you connect the charger, but i think it works only if battery is connected.
Is there a not hardware solution?

Related

[Solution]SI E10 Cannot power on or charging problem

SI E10 Cannot power on or charging problem​Applicable for: Xperia X10 mini / E10​
Description:
In rare cases the E10’s charger can be detected as a PC, this will greatly prolong the charging time.
If a phone have shut down due to low battery and is detected as a PC connection, the time before start up
voltage is reached will be very long.
Solution:
1. Remove the charger from phone and power outlet.
2. Attach the charger to the phone
3. Attach the charger to the power outlet
Reminder:
A hardware reset is done by pressing the on/off button at the top and the Home (middle) button at the same
time.
Hhmmm, quite easy to do a hardware reset accidently, is it really that simple?
Sent from my U20i using XDA App

[req] Charge State, software manager

Hello,
I recently purchased Samsung galaxy s2 power pack, and it this does not have an ON/OFF option for the power.
I would like to have the option when i want to use the juice from the power pack! so for that my question is!
Do you know a way how to soft dictated to the phone, not to charge the phone battery even if the power is connected?
The phone see the power pack as AC charger!
Thank you

Charging in WP7

I got problems with WP7 battery charging so I decided to find out some infos about it.
In WM to build external charger you need to cross D+ and D- in usb (signal wires). In WP7 it's doesn't do the trick, it wouldn't charge.
Also USBHub also doesn't charge it.
The only way to charge TG01 in WP7 is to plug it into computer's usb port, then red led will appear and it will charge pretty fast.
If your battery got drowned too low to boot the phone, recharge it manually witl cut usb cable and red wire to + and black wire to -, hold about a minute or two and then boot the phone and charge.
Is there a solution yet to charge the phone in WM7? Can not we make a home charger?
thanks
you can. I am charging phone with regular charger i got with toshiba
nikola92 said:
you can. I am charging phone with regular charger i got with toshiba
Click to expand...
Click to collapse
the same here- i have no problems with battery or charging .......
So toshiba charger does something else than just shorting d+ and d-, I've built my own charger which works in winmo, but doesn't work with wp7
ok, thanks for the explanation
Hi,
i also use not orginal charger and it works fine ,but problem occure when battery will got drowned.
In this case the same charger will cause that led will be orange suggesting that charging process was started ,but in fact it won't charge. (phone was left in this condition for 10hourse without any progression)
I had the same situation with wm6.5 and then it was enough to plug this phone to usb, after a while it was able to charge.
But when you have wp7 phone will try to continuously boot up and charging won't start. So one solution is as Aeroflyluby wrote: charge this battery manualy for a one minute or you can do as follow:
1. plug phone into usb
2. hold down volume - and volume + and press power - this procedure will start bootloader menu
3. press volume + to select boot source = USBFb serial
4. press volume - until you will see Device ready to download image...and orange led lights up
there will be of course error information but it doesn't matter.
Important is that this procedure will force charge mode .
This procedure will not damage or erase your current ROM.
Regards, Tom
I can confirm that need only short +D and -D. I convert a generic car USB charger for my toshiba with this method .

[Q] Huawei Y300 (U8833) only turns on and works, using a usb cable not battery?

Hello, my Huawei y300 (u8833) only turn on and works while I plug in my usb cable either (charge). My phone doesn't turn on when i press the power button and I'm on just my battery, amazingly it turns on instantly after i plug in the usb charger and remove the battery. So i got a little tired of having to plug in my phone all the time and not use it on battery. Any help? I dropped my phone 9 months ago and it didn't work back then but i never tried the usb cable on without battery. But now after 9 months i plugged in usb cable and no battery and *boom* it works. Any advice as to what is going on? Can i ever get it to work from my battery? (BTW there is a red notification light (not blinking) if i put battery in along with usb cable. Thanks for any help.
Update: Somehow its charging my battery!
Update: (PS:I'm rooted and have cwm)
Update: I'm fuc*ing stupid, its now working on battery! Sorry to have waster your time

Battery charging

I just got the g power. Coming from the g7 power, I noticed it uses a different charging variable. The g7 power used battery_charging_enabled to control the battery charge, but the only thing I see for the g power is input_suspend. The problem is that with input_suspend it completely cuts usb power.
Where with the g7 power, when battery_charging_enabled was 0, it would still see power from the usb, the g power will drain from the battery since it's cutting all usb power.
Anyone have any advice here? I like to charge to 80 but still draw power from usb for normal functions.

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