Hiii
I just want to confirm that weather it's normal or not?
1. When ever I connect my phone to power (While phone is switched off) USB/AC phone boots up to safe strap choice menu automatically without pressing any button & I can go to safe strap menu by pressing settings button or boot normally to phone. If i don't do any thing it goes to charging mode.
2. When I connect to AC power & at that time even if battery is not there in phone, it will boot to safe strap choice menu but wont boot further. whatever i press it will just boot again.
3. While connected to AC power after booting into safe strap even if I remove battery, safe strap works fine. I can browse through menu etc.
If that be the case then may be phone can also work like that with some tweaking, so for people like me who are most of the time working on laptops, they can connect their phone to charger cable whenever possible & reduce use of battery. It will increase the battery life also.
Related
Hi,
my dear D4 falled down from my jacket, after it doesn't want to power on. I tried to remove the battery and boot, but it freeze on motorola dual core technology screen. I tried to boot with the wallcharger (and battery on) but after this screen the phone simple reboot and come back to motorola dual core screen. What could i do to get it back?
It has CM12 and safestrap on (perfectly work before it fall down)
After come times without battery on, i retried to attach it and connect the wallcharger. The phone, after motorola dual core screen, show a "?" inside the battery (on battery charging screen)
It looks like phisical damage
Can you load Fastboot option ? (Hold volume up, down and power button when your phone is off)
Fervi
Hello. This morning I've turned off the alarm, turned on WIFI and went back to sleep. I can't tell for sure, but I think the battery was low. During the next 2 hours I checked the time several times. I don't remember accepting any OTA. Eventually I got up, tried to check the time and the phone was off. I tried to turn it on, no effect. No matter how many times and for how long I pressed and held the power button, the green LED only flashed for a split second and that's all. I plugged in the charger, and the LED stayed lit -but- there was this barely noticeable flickering. Charged it for about 30, 60, 120 minutes, didn't start plugged or unplugged. I went to work, 8 hours later (phone was unplugged) I tried to turn it on again, this time the LED doesn't even flash, but when charging there is no flickering. No combination of buttons works. Windows doesn't find the device, neither does RSD.
I've never done anything 'custom' to the phone. The last change I made was setting the alarm to turn off by shaking (yesterday, never used this option before).
Is it dead?
Try taking SD card out and holding Vol down and then Power for 20 secs, then let go of Power,
Already done that, nothing. No matter how long I charge it now, after unplugging and pressing power button the LED doesn't even flash. Could it be a battery problem (before its death, it would last for a day)? Is there any way of recovering my data without buying a new one?
Try opening and disconnect battery for a bit.
I'll do that as a last resort, on weekend maybe since I don't have the tools with me. Any other clues?
Nobody knows how to help me?
I'm going to make a factory cable. Will this alone allow me to recover the data? Or if I'll be able to flash the phone, can I recover the data afterwards?
Also, I'm not sure if I understand correctly: does the factory cable recharge the battery or not? Is there a way to recharge it when removed from the phone?
Try to use medfield unbrick script. If You have only green led it seems to be bootloader error so this script should bring Your phone to life or Your phone has broken emmc and You can start looking for a new logic board. Good luck.
I've installed the drivers, but Windows and XFSTK don't recognize my device at all. Factory cable also didn't help. I liked my phone very much. :angel:
Did You enter medfield mode using combination with camera button??
By a combination you mean holding the camera button and connecting the phone to a pc? I tried that.
Disassembe Your phone, pull out battery, push power button for a 10 sec, plug in battery, push camera button and connect USB. If it wont help You I don't see any hope for Your phone.
Well, new option to try is a new hope. I'll try that on the weekend. Could you please be more specific:
1. Pull out the battery.
2. Press the power button and wait 10 seconds.
3. Insert the battery: should I be still holding the power button at this moment?
4. Press the camera button.
5. Plug in the usb cable (factory? regular?) - should I be still holding the power and camera buttons?
Battery trick is only to discharge capacitors. Sometimes even phone is dead it can turn on in some strange mode and then You can't boot it to flash. Thats why You need to pull out battery, push power for a few sec to completely discharge motherboard and just release this button. After that You can just plug in battery and continue normal unbrick process - so hold camera button only and connect regular usb cable.
You can also try reset option instead of pulling battery out. To do that do not disassemble Your phone but just plug in regular USB, when phone starts (green led) hold power and vol- until green led goes off and then quickly start holding only camera button.
I have no more ideas.
Ok, I've tried everything. Nothing brought my phone back to life.
Thanks for all your help.
I've had my Droid 4 completely lose battery on one or two occasions where I wasn't paying attention to it while doing something else.
It turns out that I have to plug it in and wait until the battery is at 100% to get it to start up again. What is the way around this? Just holding the power button turns the phone on, shows the motorola boot logo, and then shows the battery at whatever percentage it's currently charged to. How do I bypass this and start into the ROM and then just charge from there?
In an emergency when I'm waiting for a call or something, this is something I need to be able to do.
Careless_ said:
It turns out that I have to plug it in and wait until the battery is at 100% to get it to start up again. What is the way around this? Just holding the power button turns the phone on, shows the motorola boot logo, and then shows the battery at whatever percentage it's currently charged to. How do I bypass this and start into the ROM and then just charge from there?
Click to expand...
Click to collapse
The power button on my phone is completely non-functional, so I have to plug it into a charger to "kick-start" it on the rare occasion that it's completely shut off; which, more often than not, is when my now rapidly-aging battery craps out and I don't catch it in time. So I face this every now and then.
The solution:
Let the phone charge enough to safely boot; 10% oughtta do it. It seems that the phone does charge whenever power is being supplied regardless of its state, but the amount of drain while booting means your charger by itself probably won't keep up
Unplug the phone; this should make it shut off
While holding Vol+ and Vol-, plug the phone back in (you may be able to use the power button instead of plugging in, but I wouldn't know). This will bring up the menu of which the name escapes me at the moment
Unplug the phone (may or may not actually be necessary for success, but I always do)
Select Recovery (Vol- navigates, Vol+ selects); this will get you into the 96% useless stock recovery
Press Vol+ and Vol- together until the menu comes up; this might take several tries because either the phone is fidgety or the timing is stupid-precise
Select Reboot (either Enter or Ok on the keyboard to select, I forget)
The phone should reboot properly, skipping the forced charging thing. You can (and should) plug the charger back in anytime after you hit Safestrap/the post-SS kexec buzz if you have the custom SS installed which disables the popup at boot.
Septfox said:
The power button on my phone is completely non-functional, so I have to plug it into a charger to "kick-start" it on the rare occasion that it's completely shut off; which, more often than not, is when my now rapidly-aging battery craps out and I don't catch it in time. So I face this every now and then.
The solution:
Let the phone charge enough to safely boot; 10% oughtta do it. It seems that the phone does charge whenever power is being supplied regardless of its state, but the amount of drain while booting means your charger by itself probably won't keep up
Unplug the phone; this should make it shut off
While holding Vol+ and Vol-, plug the phone back in (you may be able to use the power button instead of plugging in, but I wouldn't know). This will bring up the menu of which the name escapes me at the moment
Unplug the phone (may or may not actually be necessary for success, but I always do)
Select Recovery (Vol- navigates, Vol+ selects); this will get you into the 96% useless stock recovery
Press Vol+ and Vol- together until the menu comes up; this might take several tries because either the phone is fidgety or the timing is stupid-precise
Select Reboot (either Enter or Ok on the keyboard to select, I forget)
The phone should reboot properly, skipping the forced charging thing. You can (and should) plug the charger back in anytime after you hit Safestrap/the post-SS kexec buzz if you have the custom SS installed which disables the popup at boot.
Click to expand...
Click to collapse
Yes... this is the method I remember using once, but I couldn't get passed the useless stock recovery this time around so I thought maybe I was just dreaming. I guess my timing was just bad this go around.
Thanks again, Septfox!
My DROID 4 is like my DROID 3. When the battery completely dies, you cannot press the power button while it's plugged in.
So, Dead phone. Plug it into the charger. Wait a couple minutes, so it gets some charge. Unplug the charger, Hit the POWER button, then plug it back in.
It won't work if it's plugged in, dead, and charging. You gotta unplug it to turn it on, then plug it back in to continue charging.
That is happening not only with this model phone. On other brands is the same.
So here is the situation...I bought my wife and I X4s from Google Fi about a year ago and my wife has recently been complaining about her power button not working (though it still functions via the thumbprint). At first I thought it was her abusing the phone (like the last 3 she has destroyed) but because of her insistence that this time was different and the fact that this is a common failure mode of these phones (example 1; example 2), AND the fact that Google had a 1 day, 1/2 price sale on Pixel 3s, I got her one of those.
So now I have a backup phone that has a broken power button with a workaround. What is the best way to prolong the life of the battery in that phone? Let it power down and leave it idle for a year? Always keep it plugged into a low power USB power source?
PS - any easy way to get chop/chop->flashlight and swivel->camera on onto a Pixel?
Best way is to charge the battery to around 60% and then power off.
Leaving the battery alone for one year with a 1% or a 100% charge would definitely damage it.
That is consistent with other lithium ion battery management (non-cell phone) advise I have found in research and I am going to do it that way. The problem I encountered was that, I can't just power down (broken power button).
That being said, I did find the following using adb/fastboot:
To power down: adb shell reboot -p
This brings the X4 to a powered off state and when plugged in shows a recharge status. However, when you plug it in, it will NOT allow you to do anything without the power button.
To power up: hold volume down and plug into computer. This should bring you to the fastboot menu. On the computer type: fastboot continue That will bring you back in as normal.
Another update. Since it is now my backup phone, I am experimenting. I followed the below instructions to unlock the bootloader and root the phone and it essentially worked perfectly (instructions wise):
https://forum.xda-developers.com/moto-x4/how-to/guide-how-to-root-moto-x4-install-twrp-t3806460
Because my power button is broken, I had to modify the instructions. Instead of booting into TWRP after installing (which requires the use of a power button), I just pushed the twrp image again and then installed magisk.
Note that Motorola's unlock site was sort of down when I did it but there is a forum that Moto regularly checks if you run into problems which is here:
https://forums.lenovo.com/t5/MOTORO...-Unlock-Problems/td-p/3222809/highlight/false
And yet another update. After I rooted, I installed Custom Quick Settings and created a Reboot quick setting to replace the functionality lost with the power button. There is also a reboot into recovery option that should allow you to get into twrp.
Also, if your power button is broken, you need use the thumbprint as your unlock because otherwise, you won't be able to wake up the phone. I don't know if this works with the noNavigationBar setting but I don't want to risk it.
sleze said:
To power up: hold volume down and plug into computer. This should bring you to the fastboot menu. On the computer type: fastboot continue That will bring you back in as normal.
Click to expand...
Click to collapse
My phone's button is still not broken, so I did a
fastboot oem off-mode-charge disable
Click to expand...
Click to collapse
and now it powers up when I connect it to a charger.
I have the original charger, when I put the TP on the charging cradle, while it's off, it turns on. I don't like this. Any solutions?
I'd like to remove gapps and keep using F-Droid. Is this possible without compromising the system.
Thanks a lot.
nestaISright said:
I have the original charger, when I put the TP on the charging cradle, while it's off, it turns on. I don't like this. Any solutions?
Yes the solution is very simple and just a flash, follow this guide: PowerOFF
Click HERE for hp-touchpad-poweroff-prevents-battery Drain
I'd like to remove gapps and keep using F-Droid. Is this possible without compromising the system.
I do not know what could happen, do a back up first using TWRP. Then remove gapps and see how it goes, if it breaks anything restore from backup.
My recommendations is to start with a fresh install to use Fdroid, also follow this guide to get the most performance out of the tablet:
https://forum.xda-developers.com/hp-touchpad/general/hp-touchpad-optimize-android-swap-t3901773
Thanks a lot.
Click to expand...
Click to collapse
PowerOFF will keep the Tablet off, if it turn on by accident or by connecting a charger while off.
After PowerOFF is flash, it will be the default ROM selection on the Moboot Menu. Instead of starting any Android ROM it will turn off in the same way as selecting shutdown from Android or TWRP.
This is very important and will keep the battery working normally at all time.
Once the Tablet is place on any charger, it will wake up and start TWRP or Android. ( This is an extremely bad action to take on a device that runs on battery supply )
The default action should be stay off to protect battery drain.
Now the Tablet is on the charger and is off. If there is any changes to the electricity lets say a temporary on and off, then the Tablet will turn on again..
With PowerOFF it will shutdown, protecting the battery.
HP_TOUCHPAD said:
PowerOFF will keep the Tablet off, if it turn on by accident or by connecting a charger while off.
After PowerOFF is flash, it will be the default ROM selection on the Moboot Menu. Instead of starting any Android ROM it will turn off in the same way as selecting shutdown from Android or TWRP.
This is very important and will keep the battery working normally at all time.
Once the Tablet is place on any charger, it will wake up and start TWRP or Android. ( This is an extremely bad action to take on a device that runs on battery supply )
The default action should be stay off to protect battery drain.
Now the Tablet is on the charger and is off. If there is any changes to the electricity lets say a temporary on and off, then the Tablet will turn on again..
With PowerOFF it will shutdown, protecting the battery.
Click to expand...
Click to collapse
Thannks a million, as ever so helpful. I flashed it and it was nice to see that when the TP rebooted, among options at the first screen where you can choose WebOS, or whatver, a new addtion "power off." I did notthing and it shutback down. Thanks a lot.