How to convert a signed APK to an unsigned APK

How to convert a signed APK to an unsigned APK

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How to convert a signed APK to an unsigned APK
Tag : android , By : Sebastian Gift
Date : January 12 2021, 09:11 PM

this will help The main idea is to delete the META-INF folder bundled with your apk to make it unsigned. In windows, if you want to use GUI based systems, not all the file archiver tools can repack the apk in its original form after modification (In this case, deleting META-INF folder).
However, you can use command line to achieve what you want. You need to have 7-Zip installed in your system and add its parent directory to the system path variable. Then, you can issue this command to unsign the apk:
7z d -tzip APPNAME.apk "META-INF*"

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Convert an unsigned 16 bit int to a signed 16 bit int in C#

Tag : chash , By : user119985
Date : March 29 2020, 07:55 AM
Hope that helps I'm writing a datalog parser for a robot controller, and what's coming in from the data log is a number in the range of 0 - 65535 (which is a 16 bit unsigned integer if I'm not mistaken). I'm trying to convert that to a signed 16 bit integer to display to the user (since that was the actual datatype before the logger changed it). , Have you tried explicit casting?
UInt16 x = 65535;
var y = (Int16)x; // y = -1

C : Convert signed to unsigned

Tag : c , By : Daniel Halsey
Date : March 29 2020, 07:55 AM
will help you Actually I've (probably) a "simple" problem. So I don't know how to cast a signed integer to an unsigned integer.
printf("Unsigned : %u\n", uEntry);
//                 ^^

Convert unsigned int to signed int C

Tag : c , By : Matthew Steed
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , It seems like you are expecting int and unsigned int to be a 16-bit integer. That's apparently not the case. Most likely, it's a 32-bit integer - which is large enough to avoid the wrap-around that you're expecting.
Note that there is no fully C-compliant way to do this because casting between signed/unsigned for values out of range is implementation-defined. But this will still work in most cases:
unsigned int x = 65529;
int y = (short) x;      //  If short is a 16-bit integer.
unsigned int x = 65529;
int y = (int16_t) x;    //  This is defined in <stdint.h>

How to convert signed 32-bit int to unsigned 32-bit int?

Tag : python , By : Porta
Date : March 29 2020, 07:55 AM
I wish this helpful for you This is what I have, currently. Is there any nicer way to do this? , Not sure if it's "nicer" or not...
import ctypes

def int32_to_uint32(i):
    return ctypes.c_uint32(i).value

how does c compiler handle unsigned and signed integer? Why the assembly code for unsigned and signed arithmetic operati

Tag : c , By : Dov
Date : March 29 2020, 07:55 AM
Hope this helps It's quite easy. Operations like addition and subtraction don't need any adjustment for signed types in two's complement arithmetic. Just perform a mind experiment and imagine an algorithm using just the following mathematical operations:
increment by one decrement by one compare with zero
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