[byːçɐ] is the IPA for this word, so neither of those pronunciations you gave is correct. "ç" is called a voiceless palatal fricative, which essentially means you're making a sound by bringing the middle of your tongue close to the roof of your mouth, and then you're breathing out without vibrating your vocal cords (like how S is pronounced in English without vibrating your vocal cords), and there should be friction between the roof of your mouth and your tongue.
You can see detailed pronunciation information here at the link at the bottom of my reply, and you can also listen to a native pronounce the word as well.
Depends on the keyboard you are using but try to keep some key pressed (a, e, o, etc) to see if special characters popup or look for them in a special panel (with the numbers or alone under some key like "1/2", etc). If you can't find any then install another keyboard from the store (Swype, touchpal, etc).
Why I must write "THE" books for "correct" answer when in english I don´t use THE in plural? (also English isn´t my native language but I never heard anyone saying "I bought THE books."... I just say "I bought (some) books." or "I bought these books," when I am talking about some books we were talking yesterday about them...or not?
"The books" and "books" mean two different things. By using the word "the", it shows that these books that are being talked about are specific and not general.
Ex. "The books on the table are green". This means that there are some books on a table next to the speaker, and the speaker is not talking about books in general.
Ex2. "Books on tables are green". This sentence means that all books located on all tables anywhere are green, because there are no definite articles to show specificity.