Help needed: Increasing Parrot Bebop 2 drone max altitude (technical) - Android Q&A, Help & Troubleshooting

(Sorry, I just realized this should be in Q&A and not General)
Hi there fellow Android enthusiasts.
Recently I bought a Bebop 2 drone, which is quite fun to play around with. After a couple of flights I noticed that
the max altitude of this device is 150m (492.12ft). I dug through a couple of threads on the Parrot forum about increasing
past this limit and somewhere I've read that the limitation is build into the piloting app.
So I decompiled the app with an app called ShowJava, I searched through the generated sources for strings like "MAX_ALTITUDE" and "150.0".
After some digging I found the following interesting file.
com.parrot.freeflight3/java/com/parrot/freeflight/piloting/model/bebop/BebopPreset.java which has a static final:
Code:
MAX_ALTITUDE_STATE = DoubleBoundedState.createFromValue(ExponentialBackOffPolicy.DEFAULT_RANDOMIZATION_FACTOR, 30.0d, 150.0d);
DoubleBoundedState is a class found in com.parrot.freeflight3/java/com/parrot/freeflight/util/DoubleBoundedState.java and it looks like a wrapper class that has 3 fields of the type Double, mCurrentValue; mMaxBound; and mMinBound; (thank "God" for proper named of fields). The wrapper class has a "constructor" createFromValue which takes 3 arguments: double minBound, double currentValue, double maxBound. After digging through some more code I found out that DEFAULT_RANDOMIZATION_FACTOR has the value of 0.5, so this is the lowest altitude value that can be set in the UI and it can be found in /sources/com.parrot.freeflight3/java/com/google/api/client/http/ExponentialBackOffPolicy.java.
So.... we could conclude that the 150.0d is 100% certain the max altitude value, which is hardcoded into the piloting. As far as I can see it's only in that 1 file (BebopPreset.java).
This is the point where I could use some help, what I did after all that was decompile the apk file with apktools and looked at the smali file (I have no experience with smali files):
Code:
.line 14
const-wide v8, 0x4062c00000000000L # 150.0
move-wide v4, v12
move-wide v6, v2
invoke-static/range {v4 .. v9}, Lcom/parrot/freeflight/util/DoubleBoundedState;->createFromValue(DDD)Lcom/parrot/freeflight/util/DoubleBoundedState;
move-result-object v0
sput-object v0, Lcom/parrot/freeflight/piloting/model/bebop/BebopPreset;->MAX_ALTITUDE_STATE:Lcom/parrot/freeflight/util/DoubleBoundedState;
So I think const-wide v8, 0x4062c00000000000L # 150.0 is the line I would want to edit?
Luckely in that same settings screen in the app is a maximum distance which is 2km (2000.0d)
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and in the smali file that's the entry right underneath the one I want to edit. It looks like this.
Code:
.line 15
const-wide v4, 0x409f400000000000L # 2000.0
const-wide v6, 0x409f400000000000L # 2000.0
move-wide v2, v14
invoke-static/range {v2 .. v7}, Lcom/parrot/freeflight/util/DoubleBoundedState;->createFromValue(DDD)Lcom/parrot/freeflight/util/DoubleBoundedState;
move-result-object v0
sput-object v0, Lcom/parrot/freeflight/piloting/model/bebop/BebopPreset;->MAX_DISTANCE_STATE:Lcom/parrot/freeflight/util/DoubleBoundedState;
So I tried to change the value 0x4062c00000000000L for the value 0x409f400000000000L in the hope I would see 2000 in the UI instead of 150. But after rebuilding the apk and signing it I still see 150 as a max. Who can and wants to help me change this smali file in the correct manner?
Also, you might have noticed I have the java classes so you might ask "why don't you build them?", believe me, I tried. But android studio makes a mess out of the project and refuses to build it. Many thanks in advance for any input.
UPDATE:
Looks like overwriting that value was enough, the drone keeps the 150 somewhere as well, as soon as I connect with the drone the max altitude changes to 150 again so I guess I will have to patch the drone to.

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I had seen many times people reply to this question vaguely with "You can override max altitude 150 of the Bebop 1 or 2 using Flight Plan", but it is never accompanied with instructions. The Waypoint Altitude Slider maxed at 150 meters. Well, tonight I randomly saw a video with some basic Flight Plan how-to info. The content creator showed that if you ling-press on an existing Waypoint in Flight Plan, you get a box that asks if you want to EDIT the waypoint or TRASH it. If you click the EDIT button for that waypoint, you get a numerical data entry box and you can manually enter the altitude for that waypoint. The video maker entered something like 90, but I'm more subversively-minded (in theory) and I also own a Bebop 2 and I have a paid license for Flight Plan. So I popped open Free Flight Pro, picked a random point in a flight plan, lonng-pressed on it, clicked the magical new EDIT button, and entered the number 500. Clicked the check mark button to confirm. Voila! The Waypoint I'd edited was now solid red, and showed 500m.
If I lived in a country other than the U.S.A. I would have already tested it to see if it worked. I can't legally test it, and I do like be in a populated area. If someone would let me know if this works, please, I would live to know!! TIA

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Jerry911 said:
Looks like overwriting that value was enough, the drone keeps the 150 somewhere as well, as soon as I connect with the drone the max altitude changes to 150 again so I guess I will have to patch the drone to.
Click to expand...
Click to collapse
I bellieve the limit you found inside the app only applies when flying with the on-screen controls and without Skycontroller. In fact, you can fly BB2 with a SC2 while the FFpro device is unplugged, so any app-restriction would not apply either. Therefore, the control signals go straight from SC2 to BB2. The relevant altitude limit is most probably applied by the drone’s code. However, this does not yet explain how 3rd party apps like Auriga or Bebop Pro are able to bypass the limit...