[FIX] For wifi connection dropping too easily/often
- Thread starter gtg465x
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Also here, stuck on bootscreen. Reflash 
Oh well, i won't blame him, i flashed it.
You can reflash your ROM without restoring, so you wont lose data of old recoverys B-)
Oh well, i won't blame him, i flashed it.
You can reflash your ROM without restoring, so you wont lose data of old recoverys B-)
NO it's NOT !
Please DON'T use these files unless you have ROM based on Desire S 1.28/1.35 RUU.
Please DON'T use these files unless you have ROM based on Desire S 1.28/1.35 RUU.
I guess we can't fix this problem as this is hardware related moreover this is due to aluminium case that is phone has. Same problem was there in iPhone4 because of the aluminium body. Our problem is even worse if we use any case like casemate's barely there. We have to live with it...
Sent from Desire Aj'S using XDA eXtra Premium App!
Sent from Desire Aj'S using XDA eXtra Premium App!
I think its about the body but we can fix a litle with changing the minumum signal value. This fix had done it for old roms. Any dev can port it for new roms maybe
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10I don't even have this phone, but I'm tired of hearing you guys complain about your wifi dropping. HTC programmed the Desire S to drop wifi connections if the signal falls below -88db. I'm not sure why they did that because -88db is a perfectly usable signal. With this fix, your wifi connection won't drop until the signal falls below -108db.
You need to be running a custom deodexed ROM to apply this fix.
Flash through Clockwork Recovery.
Let me know if it works for you!
If you appreciate my work, donations of any amount are very much appreciated.
2[PATCH] framework.jar for altering WiFi RSSI values in ICS
/*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns before flashing it!
* YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/
A big thanks to gtg465x, kylon and others in the forum for explaining things in posts. It's their work mostly and not mine.
I'm writing this here just in case someone needs the info..
Since I had a problem with the reception of WiFi signal in a Desire S and I've been searching the forum for many days to find a solution to this that I got no responce I decided to search for the framework.jar file patch that has to be done with the /etc/calibration file change to the value of rssi_offset so that Desire S won't drop the connection so easily. Tried also to contact gtg465x but I guess he's busy.
This was done to ICE_DS 6.5 ROM
The patch goes as this:
(1. I am not a developer (used to code, not in android though)
2. I modified the values only by -10 dBm just for test you can change to -20 if you like
3. feel free to correct my wrongs)
gtg465x describes very nicely here what needs to be done http://xdaforums.com/showthread.php?p=25174730 but this is for GB ROM
Read carefully to edit your /etc/calibration file. In that post it's changed to -20, in my test to -10
but ICE_DS 6.5 is a ICS ROM
and the code in WiFiManager.smali is as follows
(the sections that need to be edited)
Code:.field private static final MAX_RSSI:I = [COLOR="Red"]-0x37[/COLOR] [COLOR="Blue"]#changed to -0x41[/COLOR] .field private static final MIN_RSSI:I = [COLOR="red"]-0x64[/COLOR] [COLOR="Blue"]#changed to -0x6e[/COLOR]
Code:.method public static calculateSignalLevel(II)I .registers 9 .parameter "rssi" .parameter "numLevels" .prologue const/4 v6, 0x5 const/16 v5,[COLOR="Red"] -0x46[/COLOR] [COLOR="Blue"]#changed to -0x50[/COLOR] const/16 v4, [COLOR="red"]-0x50[/COLOR] [COLOR="Blue"]#changed to -0x5a[/COLOR] .line 963 const/4 v1, 0x0 .line 964 .local v1, level:I const/4 v3, 0x4 if-eq p1, v3, :cond_b if-ne p1, v6, :cond_23 .line 965 :cond_b if-lt p0, v5, :cond_13 .line 966 const/4 v1, 0x3 .line 974 :goto_e if-ne p1, v6, :cond_12 add-int/lit8 v1, v1, 0x1 .line 986 :cond_12 :goto_12 return v1 .line 967 :cond_13 if-ge p0, v5, :cond_19 if-lt p0, v4, :cond_19 .line 968 const/4 v1, 0x2 goto :goto_e .line 969 :cond_19 if-ge p0, v4, :cond_21 const/16 v3, [COLOR="red"]-0x55[/COLOR] [COLOR="Blue"]#changed to -0x5f[/COLOR] if-lt p0, v3, :cond_21 .line 970 const/4 v1, 0x1 goto :goto_e .line 972 :cond_21 const/4 v1, 0x0 goto :goto_e .line 976 :cond_23 const/16 v3, [COLOR="red"]-0x64[/COLOR] [COLOR="Blue"]#changed to -0x6e[/COLOR] if-gt p0, v3, :cond_29 .line 977 const/4 v1, 0x0 goto :goto_12 .line 978 :cond_29 const/16 v3, [COLOR="red"]-0x37[/COLOR] [COLOR="Blue"]#changed to -0x41[/COLOR] if-lt p0, v3, :cond_30 .line 979 add-int/lit8 v1, p1, -0x1 goto :goto_12 .line 981 :cond_30 const/high16 v0, 0x4234 .line 982 .local v0, inputRange:F add-int/lit8 v3, p1, -0x1 int-to-float v2, v3 .line 983 .local v2, outputRange:F add-int/lit8 v3, p0, 0x64 int-to-float v3, v3 mul-float/2addr v3, v2 div-float/2addr v3, v0 float-to-int v1, v3 goto :goto_12 .end method
this translates to java as (the original values)
Code:public static int calculateSignalLevel(int paramInt1, int paramInt2) { if ((paramInt2 == 4) || (paramInt2 == 5)) { int i; if (paramInt1 >= -70) i = 3; for (;;) { if (paramInt2 == 5) i++; return i; if ((paramInt1 < -70) && (paramInt1 >= -80)) i = 2; else if ((paramInt1 < -80) && (paramInt1 >= -85)) i = 1; else i = 0; } } if (paramInt1 <= -100) return 0; if (paramInt1 >= -55) return paramInt2 - 1; return (int)((paramInt2 - 1) * (paramInt1 + 100) / 45.0F); }
There is also another section in WiFiManager.smali called calculateSignalLevel(III)I
but I have the believe (which I may well be wrong) that has to do something about WiMax (if (paramInt3 > 4900)) so I didn't touch that.2Ok, checked the file and it's possible but a bit hard using init.rc.
Another way, download the attached file, extract it, open the extracted file and replace the PATHTOCALIBRATIONFILE with the correct path inclusive filename, afterwards copy it to your /etc/init.d folder and set the correct permissions (r-xr-xr-x or 555 or everyone execute and read), this will write at startup the fitting values to the calibration file.
