I would go to were ever you got the android image from and ask the question.
does this android 7.1.1 image work on the pi 3B+ I suspect you might find the answer is no.
the raspbian image you have that works is obviously a very recent on that has all the updates that allow both the pi 3B and pi3B+ to boot from it.
A quick google search suggests android 7.1.1 pre dates the release of the pi3B+ and only supports pi2 and pi3 not the plus
Last edited by pcmanbob
on Fri Jun 01, 2018 5:06 pm, edited 1 time in total.
Please only ask questions in the forum I will not answer questions sent to me directly via PM
Remember we want information.......................no information no help
The use of crystal balls & mind reading is not supported