Some help needed with Lubomyr´s BII port for Adroid

Since a few days, Lubomyr submitted a SDL port for BasiliskII on Android over at Emaculation.
Thats great news for our mobile devices.

I found that BII is running smoothly on a stock Huawei Y300 - Android 4.1.1, perfect sound and graphics. The Y300 mounts the external SD card as "sd0", which may be the reason for having no trouble with BII.

I´m stumped how make BII boot on a 4.0.4 or a 4.2.2 tablet, which would be my desired device for a portable vintage Mac.
The Trekstor 4.0.4 mounts the external SD as "extsd".
The Lifetab 4.2.2 mounts external SD as "external_sd".
I specified the path to the BII files in the SDL config screen of course, but no dice.

Is someone willing to chime in to get things rolling?

Files:
Lubomyr´s apk: https://dl.dropboxusercontent.com/u/47797448/basilisk2/basilisk2-sdl-and...
BII ROM: http://www.redundantrobot.com/macemulator/1mbMacrom.zip
Boot drive: http://macintoshgarden.org/apps/macos-753-emulators

Note that Lubomyr´s port is configured by a prefs file installed to: "android/data/net.cebix.basilisk/files" which should look like this if you choose to use the files from the links above:

disk MacOS753.dsk
extfs /
seriala /dev/ttyS0
serialb /dev/ttyS1
udptunnel false
udpport 6066
bootdrive 0
bootdriver 0
ramsize 33554432
frameskip 0
modelid 14
cpu 3
fpu false
nocdrom false
nosound false
noclipconversion false
nogui false
jit false
jitfpu false
jitdebug false
jitcachesize 0
jitlazyflush false
jitinline false
keyboardtype 5
keycodes false
mousewheelmode 1
mousewheellines 3
dsp /dev/dsp
mixer /dev/mixer
idlewait true
rom PERFORMA.ROM
win/800/600