The phone is switched off due to a fall impact which caused slight movement to the battery interrupting the power. Is there any way to boot without those important keys? It's stuck on the battery charging screen when I plug in the cable and I can't think of any other way to bypass that to access recovery or download mode because if I do, I can boot the phone from either of those two using adb or fastboot commands. I can't do anything on the battery charging screen. Is there a reset pinhole or something in this phone? Is this a dead end?
(I'm noob)
Option 1: Unplug battery from circuit board, and unplug usb plug. At this stage, the phone is off. With battery unplugged, press VolumeDown button and plug in usb cable (the usb cable must be powered either from charger or computer). The phone should start in bootloader mode. If you want to enter recovery, you must plug back in the battery connector to the circuit board, other wise the phone will just turn off. Then proceed with ADB/Fastboot as you suggested. (Tested this method right now to make sure it worked before posting)
Option 2: You may have a chance a starting the phone by short circuiting the pins to which the PWR and/or VolumeDown buttons are soldered to on circuit board.
I tested this method because my PWR button was broken and was acting like it was always pressed which forced a reboot each time. I unsoldered it and dismantled the button, clean inside it by scrapping off dirt and recreating the bend or dome shape of the button mechanism. I then finished by re-enclosing the button and then soldered it back to the circuit board. It worked fine, until next morning upon wakeup I decided to resolder the button because it wasn't perfectly parallel to the side of the board. By re-soldering, I destroyed the solder pad and was never able to solder it again. The phone is not usable as a daily anymore, only usefull for surveillance cam or server...
Edit: found this thread that may be usefull for you.
https://forum.xda-developers.com/google-nexus-5/help/life-power-button-tips-how-to-make-t3410081
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Hi, I have a problem with a P5113. I plugged an audio jack into it to listen to music on some speakers and the tablet instantly shut off and would not power back on. I have tried the vol+ and power, vol- and power, and power while touching the screen methods and nothing works. I aslo opened it up and disconnected the battery for hours and tried to boot (with and without battery connected) with no dice. The only sign of life is when I first press the power button, the screen backlight flashes for a split second. Also, when I plugged it into my computer via USB cord without battery attached, the backlight kept flickering at an interval while my computer kept trying to install it, like it was repeatedly trying to power up, but couldn't. I tested the fuse near the battery socket on the motherboard and it's good. Short of completely replacing the motherboard, I was wondering if anyone has a solution or suggestion that I haven't tried yet. I'm thinking a shorted capacitor, but my skills with identifying and testing SMD's is lacking. My main concern is the files that are stored on the memory of the motherboard since a replacement only costs $50. Any help would be greatly appreciated and any additional information will be gladly provided. Thank you.
Pulled my bone-stock (with current OTA updates) Nexus 5 out of my pocket and the screen was already on. It was asking for an encryption password to decrypt the data on the phone. I figured it may have turned on in my pocket and the pocket movement caused too many pattern unlock attempts. I turned it off and went about my business for a bit. Now the phone won't turn on.
It does not respond to being plugged into a known working usb cable and usb charger.
It does not respond to being placed on a known Qi wireless charger (the charger does indicate a connection).
My computer recognizes it as a QHSUSB_BULK device, but cannot find/install drivers for it.
Tried every power combination of vol-/power, vol+/power, vol+-/power.
Any suggestions?
Sounds like you busted your bootloader. I guess even the secondary won't come up?(Both volume keys and power button)
secondary bootloader fix attempt
Unfortunately my phone did not respond to those combinations of power/vol buttons.
I'm hoping someone who knows the behaviour of this phone can help.
I changed the power / volume up/down buttons after taking the phone apart. I followed a rather good guide here: https://www.youtube.com/watch?v=1jX4PWIw0f4
After plugging it all together again, I tried to start the phone without the cover on. It started fine, and my stuck volume down button problem (causing safe mode) was fixed.
I then put the phone back together properly. Since doing that, it won't start.
Phone doesn't have SIM or SD card inserted at the moment.
If I unpug the battery and power via the micro USB port, the red LED is faintly on, the phone looks like it's booting with the Sony logo appearing for about a second before all going dark and repeating the process.
Question: is that normal behaviour because battery is missing and phone will refuse to boot without battery?
If I connect the battery, phone will no longer start. Holding down the power button doesn't work. I also tried plugging in the old strip where the volume down wasn't working (but power OK) and no difference.
This would suggest the battery has failed. The outer aluminium foil is broken at the bottom following me taking it out first time - Sony use stupidly sticky stuff to hold it in place and it seems to stick to the aluminium foil far too much causing tears when removed.
But if phone should boot without battery and currently isn't then it isn't (just) the battery.
So can anyone offer and advice on how to proceed? I'd like to avoid spending $500 on a new SIM-free phone if I can!
My U11+ was wet under the rain, the touch panel has stopped working and even the LCD panel has started to give problems, I sent my phone in assistance but it was not repaired because of water infiltrations even if IP68...
I repaired several phones in my life so I decided to replace the screen, I made a complete and careful teardown (can't find videos or tutorial for this phone) and I installed the new full screen (lcd + touch + glass).
Now if I connect it to the power supply or to the USB the battery icon appears on the screen and the LED lights up but if I try to turn it on nothing happens, I can't even go into recovery or download mode and the PC doesn't detect the device.
Analyzing the situation it seems that the screen and battery are correctly connected to the logic board as well as the type-C port. To my eyes it seems that the power annd volume button are not connected via flat cable to the logic board but through 4 contacts at the bottom, I see no traces of oxidation or damage to the contacts, any suggestions?
The phone is switched off due to a fall impact which caused slight movement to the battery interrupting the power. Is there any way to boot without those important keys? It's stuck on the battery charging screen when I plug in the cable and I can't think of any other way to bypass that to access recovery or download mode because if I do, I can boot the phone from either of those two using adb or fastboot commands. I can't do anything on the battery charging screen. Is there a reset pinhole or something in this phone? Is this a dead end?
Should be able to short the power switch pins, I replaced the switch in my nexus 5 ages ago and couldn't tell you which pins did what, but it's 100% possible with a small length of wire/paperclip.
Run fastboot oem off-mode-charge 0 on the bootloader the next time you can and you'll be able to turn on your nexus just by plugging it in into a computer or charger. Quite useful when your power button doesn't work.
And yes, shorting the power button is the only way you're going to turn it on, careful though.
To access the bootloader without volume down you can use adb reboot bootloader
https://old.reddit.com/r/Nexus5/comments/3vk4i8/disable_offline_charging_for_nexus_5/