A complete user manual(with graphs) can be accessed here, below are several Frequently Asked Questions with answers:

1. What kind of cellphones can run MTextReader?
A: MTextReader was written in Java and it uses File Connection API to browse phone memory for text files, so only Java-phones with File Connection support can run MTextReader. Below are phone models that have been tested using emulators and/or real phones:
Nokia: 2855, 3152, 3155i, 3250, 5500, 6060, 6101, 6102, 6103, 6126, 6131, 6136, 6155, 6165, 6230i, 6234, 6235, 6235i, 6255, 6265, 6270, 6280, 6282, 6630, 6680, 6681, 6682, 6822, 7370
Sony Ericsson: D750i, K310, K510, K600, K608, K610, K750, K790, K800, P990, V600, W300, W550, W600, W700, W800, W810, W850, W900, W950, Z500, Z520, Z525, Z530, Z710
Note, MTextReader may not work on these phones if memory is not sufficient for loading large text files.

2. What does the encoding and text language mean and how they are related?
Encoding means the way that text are stored(e.g. Unicode, UTF-8), text language means the language of text file content, currently MTextReader supports these encodings and languages:
ANSI: mainly English
Unicode Little Endian: both English and Chinese
Unicode Big Endian: both English and Chinese
UTF-8: both English and Chinese
GBK: Chinese only
GB2312: Chinese only
GB18030: Chinese only
Note, your phone can read Chinese only if your phone HAS Chinese font.

3. Why my phone crashes when I run MTextReader?
Your phone may not support File Connection or does not support it well, or if it crashes when you are loading text file, in this case, the text file may be too large to load into your phone memory.

4. I don't know how to control it, what does each key do?
Please refer to the user manual, it has explanations of functions/keys.