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12h
comment What is CP and AP and what are these options used for?
I found one clue about CP/AP, and it's from a discussion at Android Central. One Galaxy S4 user with AT&T in the US had to use this service menu to switch from CP to AP, in order for Samsung Kies software on the PC to recognize his phone. It kept saying SGH-I337 does not support initialising. It seemed to have something to do with a custom bootloader by AT&T, and it was probably set to CP mode by default. That's a clue, but not a clear fact. Switching it to AP made it recognized in Kies.
12h
comment What is CP and AP and what are these options used for?
The code to get this screen is #*0808# for Android 4.2.2 and above (if I recall correctly). In case someone else wants to try it.
12h
comment What is CP and AP and what are these options used for?
Can you please tell me what these CP/AP options do? You have explained the abbreviations and that CP is one component inside the phone, and AP is another. I thank you for that! But what difference does it make which mode is selected? Surely, both CP and AP are enabled in hardware? I tried looking for this info on the XDA forums link but didn't find anything more than a reference to it, and I did a term search in the book mentioned above but got no hits.
1d
revised What is CP and AP and what are these options used for?
formatting, typo correction, whitespace cleanup, some rewording for clarity
1d
revised What is CP and AP and what are these options used for?
image edit, link to second image, some rewording, title edit
1d
comment What is CP and AP and what are these options used for?
I now understand from the answer below what CP and AP is. What I don't understand is how the selection of either one of these options on the menu affects the operation of the phone. I know, "it enumerates a different driver". So what? To what end? So if someone knows the answer to that please fill it in below.
1d
comment What is CP and AP and what are these options used for?
But what difference does it make if the CP mode or the AP mode is selected? How do these changes manifest? What's the difference? Or when is one preferred over the other?
1d
comment What is CP and AP and what are these options used for?
Nice post! Really! But I have reworded a few things and done some formatting to it to improve clarity. I hope you don't mind.
1d
suggested approved edit on What is CP and AP and what are these options used for?
2d
comment What is CP and AP and what are these options used for?
I should have mentioned that, yes. It's a Galaxy S4 Plus.
2d
suggested pending edit on dialer-codes tag wiki
2d
suggested pending edit on dialer-codes tag wiki excerpt
2d
asked What is CP and AP and what are these options used for?
Jul
4
awarded  Notable Question
May
22
revised Where can find older versions of Apps?
added appdowner
May
22
comment Where can find older versions of Apps?
You can't change the behavior of an app without the source code. So having only the APK is not enough. If someone wanted to, he could mask a malicious app as a legitimate one. So he could just use the name "bananas.apk" to make you think that it's that game that you love so much. That's one of the oldest tricks in the book. It's highly unlikely that it's the original app but with changed behavior. (With reservation for open source apps whose sources anyone can grab and change.) But if you want to be sure it's safe, just install it in an isolated environment, like a VM or a test phone.
May
22
answered Where can find older versions of Apps?
May
22
comment Where can find older versions of Apps?
While you are right about using trusted sources for installing apps onto ones phone, you must keep in mind that not all changes that are made to an app are for the good. Therefore, there are often very legitimate reasons why someone would want to hold onto an older version. At the very least, users should be given the choice! Not just the choice to update, but the choice to downgrade as well as keep current version. So called "developers" and companies like Google should not be just shoving new apps and versions down our throats, and we as users and consumers just taking it without a blink.
May
22
comment Where can find older versions of Apps?
Yeah, they updated it only so they could prompt the user with stupid KYC questions (banking) and pretend to comply with stupid laws that have total citizen surveillance, tracking and control as their objective. If I can say no to that kind of bullshitting I will. To do so, my only option at the moment is to keep the current app version or grab an old version from other sources (when "premium" and "trusted" Google Play service is incapable or unwilling to do so). Have the guts to say no and disobey when something is not right! Don't follow the stream of stupidification!
May
18
revised Recover a deleted file from phone memory without USB Mass Storage class?
small update; edited body