Boot loop problems

[COLC1]

There has not been much action here for a while, so here goes!
I purchased a used Nexus 10 seven years ago, so it is probably 10 years old now, with original battery
The problem I have is that I have encountered a problem that I am unable to fix; when I boot up I receive this message
“Android is starting, optimising apps 1 of 119” (cannot understand the 119, definitely nothing like 119 apps on the device.)
The message is in a loop, and Nexus is unusable, I cannot get into safe mode, when I click on recovery mode I receive the message “no command” or get a message "download do not switch off"
Any assistance would be appreciated

 

[kingpeppermint]

So if you are in the ''no command screen'' he have to play around with the buttons so you get an menu, then select adb sideload. (with my Pixel 6 pro it's keeping the power button pressed and hit the up button a few times.)
In preparation it's an good idea to download the ota firmware files and platform tools so you can start right away once you're there.
If this all is a bit jibberis to you try finding an guide on sideloading for your device. The general idea is the same so if you can't find it for your device, look at the pixel 6 pro page under howto there are a few good guides you just have to adjust them a bit to your device. Andriod flash tool (via the google/andriod site) might be an option too, if the nexus is supported.

 

[COLC1]

Thanks for reply,however I have had enough, wasted too much time , the latest is the only screen I can get up is "downloading do not turn off target.
Think I will surrender to a replacement, considering my usage I might take a punt on this at at Amazon Aus $109

Tablet 10 Inch Android 11 Tablets, 32GB ROM 512GB Expand，6000mah Battery, Quad-Core Processor 2GB RAM Tableta, 8MP Camera WiFi GPS FM 10.1'' IPS HD Touch Screen, ZZB 10IN Tabletas​