Patched by ZoT (2016) for Hubsan H501S

H501s-FC-V1.1.17_no_altitude_limit.hbs is based on original 1.1.17. The only change is that altitude limit of 250 meters is removed and you can fly up to 999 meters. I DON"T RECCOMMEND to fly higher, cause i know that either FC or Remote controller is not able to work with altitudes higher than 999 or less than -999 (yes, altitude can be -999 :) i tested).

Maximum altitude value that i tested is ~600 meters.

If your current FC firmware version is not 1.1.17 then just do normal upgrade to modified 1.1.17:
	1) connect qaudcopter with usb cable to PC
	2) start "HUBSAN FC Tool V3.exe"
	3) press "Open File" button and select "H501s-FC-V1.1.17_no_altitude_limit.hbs"
	4) press "Upgrade" button
	5) wait untill upgrade is finished
	6) disconnect quadcopter

If your current FC firmware version is original 1.1.17 then you need:
	1) downgrade to any previous version (1.1.11 included in this archive)
	2) power up and qaudcopter, wait till it's initialized then power off
	3) just do normal upgrade to modified 1.1.17
	
Altitude limit value is stored in EEPROM and downgrade is needed cause EEPROM is updated only if firmware version is different than previous. And i decided to not change version number in modified firmware from 1.1.17 to something different.