Struggling to get my Nexus 4 working again

[hugomax]

I am determined to get my beloved Nexus 4 back up and running. Love this phone and I want it back.

The phone started freezing and I can't get past the swipe lock. The phone ramdomly selects its own sequence and locks me out. I got the phones volume button fixed so I could activate recovery mode. However when it is engaged the phone reboots and a little andriod figure appears with the comment 'no command'. So I think there is some firmware missing.

The recovery screen reads the following:

FASTBOOT MODE
PRODUCT NAME - mako
HW VERSION - mako 16GB
BOOTLOADER VERSION - MAKOZ30f
BASELOADER VERSION - M9615A-CEFWMAZM-2.0.1701.05
CARRIER INFO - None
SERIAL NUMBER - 04d821f7a250c5e7
SIGNING - production
SECURE BOOT - enabled
LOCK STATE - locked

Can someone give me some idea on what I can do next? Thanks

 

[belodion]

So you're saying that when you see the Android and the No Command message, you're unable to get the normal command procedure to work? Or that what you have described above is what you see when you follow the command procedure?

Posted via the Android Central App

 

[hugomax]

When I press the volume button and power button the Recovery Options appear. I can toggle through them using the volume buttons; START, REBOOT and RECOVERY. When I select recovery the phone reboots. Google appears and then a little icon of android with an explanantion mark, and the note NO COMMAND underneath.

 

[belodion]

That's normal. At that point it's waiting for you to enter a command. Do that by holding down the Power button, then press the Volume Up button once. The options to Wipe Cache Partition etc then appear.....use Volume Up/Down to select, then Power button to start the selected procedure.
All the above is not necessarily easy to do first time - the phone may just restart if you don't get the button-pressing just right - but eventually you should get there.

Posted via the Android Central App

 

[hugomax]

Thanks, I followed the instructions and got the phone to delete personal data and reset to factory settings. After a long reboot it opened a screen to select Country/Language. The screen is VERY unresponsive and I can not scroll down. However after persistently stroking the screen it does scroll down, but the select button is unresponsive. Is it a screen problem? What should I do?

 

[belodion]

The digitiser may be failing if the touch sensitivity is poor. Short of replacement I don't know what else you could do at this stage but others may be able to suggest. Don't give up on it.

Posted via the Android Central App

 

[hugomax]

I cant help thinking it is a OS issue and not hardware. If I persistently hit the 'skip' button and around it I can get to the next screen. But there is no way to finish the set up. I went back to System Recovery Options. There is an option to Wipe Cache Partition. I presume this will delete the OS. Is there a procedure to re-install the OS. There is an option to Upload from ADB. [clutching at straws here .....]

 

[belodion]

A Cache Partition wipe will not delete the OS, nor any of your personal data....though that is presumably zero at the moment. I have heard it said that the Cache Partition is not always wiped by Factory Resetting, although I don't know whether that's true. But there would be no harm in doing it.

Posted via the Android Central App

 

[Rukbat]

There is an option to Wipe Cache Partition. I presume this will delete the OS.

No, all that deletes is the temporary data the operating system saves as it's running and "forgets" to delete. About the worst I've ever seen a cache clear do - and that was clearing an app's cache while the app was running - was crash the app. Running it again let it run normally but any data that wouldn't have been saved would have been lost. Android is pretty strict about everything saving everything as it goes, because the system "has the right" to kill any app at any time with no warning (unlike Windows, which has to ask an app for permission to kill it, which is when you see a restart waiting for an app - the app has said no, or not yet, and Windows can't kill it. Android just kills the app if it needs the space, so apps have to save tiehr data, so clearing the cache normally won't cause any problems. [Except that when Android kills an app, then brings it back, it says "and your data is here" - when you clear the cache and the app crashes, then you run it again, you can't tell it where its data is.])

Is there a procedure to re-install the OS. There is an option to Upload from ADB. [clutching at straws here .....]

Not straws - that's what I'd suggest you do. It's not "upload from ADB", though, it's flashing the ROM for the phone. (That installs a whole out-of-the-box Android system.) I've never done a Nexus 4, so I can't give you a step-by-step (I'm not even sure what software a Nexus 4 needs to do the flash), but the people at Google Nexus 4 - XDA Forums have the phone, know what software to use (and have used it) and know where to download a copy of the ROM - and have posted links in various threads on the subforums there. Help or Development might be your best bets.

 

[hugomax]

Thanks guys for your help. I shall push on to XDA Forums to see what I can find.