[MOD][HOW-TO]To disable signature checks - Sprint HTC EVO 4G LTE

This is how to disable signature checks using seo's code that has been around forever, now for the EVO LTE on ICS.
Gonna loosely quote SteelH's [How To] post opener:
This reference guide is to tell you what to edit to disable Signature Checks for the EVO 4G LTE in Services.jar. It is not an all-inclusive how-to on adb, decompiling/recompiling apks, etc. There are already several very good sources right here on XDA for that information.
Decompile Services.jar and look for \com\android\server\pm\PackageManagerService.smali
Code:
.method static compareSignatures([Landroid/content/pm/Signature;[Landroid/content/pm/Signature;)I
.locals 7
if-nez p0, :cond_8
if-nez p1, :cond_6
const/4 v6, 0x1
:goto_5
return v6
:cond_6
const/4 v6, -0x1
goto :goto_5
:cond_8
if-nez p1, :cond_c
const/4 v6, -0x2
goto :goto_5
:cond_c
new-instance v3, Ljava/util/HashSet;
invoke-direct {v3}, Ljava/util/HashSet;-><init>()V
move-object v0, p0
array-length v2, v0
const/4 v1, 0x0
:goto_14
if-ge v1, v2, :cond_1e
aget-object v5, v0, v1
invoke-virtual {v3, v5}, Ljava/util/HashSet;->add(Ljava/lang/Object;)Z
add-int/lit8 v1, v1, 0x1
goto :goto_14
:cond_1e
new-instance v4, Ljava/util/HashSet;
invoke-direct {v4}, Ljava/util/HashSet;-><init>()V
move-object v0, p1
array-length v2, v0
const/4 v1, 0x0
:goto_26
if-ge v1, v2, :cond_30
aget-object v5, v0, v1
invoke-virtual {v4, v5}, Ljava/util/HashSet;->add(Ljava/lang/Object;)Z
add-int/lit8 v1, v1, 0x1
goto :goto_26
:cond_30
invoke-virtual {v3, v4}, Ljava/util/HashSet;->equals(Ljava/lang/Object;)Z
move-result v6
if-eqz v6, :cond_38
const/4 v6, 0x0
goto :goto_5
:cond_38
const/4 v6, -0x3
goto :goto_5
.end method
Do a whole-sale .method change and replace the entire .method with this one:
Code:
.method static compareSignatures([Landroid/content/pm/Signature;[Landroid/content/pm/Signature;)I
.locals 7
const/4 v0, 0x0
return v0
.end method
p.s. you will notice that there is no .line numbers and the .registers are now .locals, that is because I use a different baksmali cmd than what is the norm. I use:
Code:
java -Xmx1024M -jar baksmali.jar -l -b -o smali/ classes.dex
notice the extra -l -b
the -l(thats a lower case L not and upper case i) changes the .registers to .locals and the -b removes the smali debugging stuff that is not needed. Most custom rom builders know about this edits but this is for the average user that would like to make edits on their own and want to make edits to system/apps.
One_Love

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In what situation would this fix be applicable?

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gpz1100 said:
In what situation would this fix be applicable?
Click to expand...
Click to collapse
This is for anyone that wants to edit a /system/app and not want to re-sign their rom so that the framework and system apps have the same signatures. As i stated in the OP this is already done by many rom devs but this is for anyone that wants to make their own rom/edits. If this edit isn't done and signatures dont match on /system/apps then there will be problems, like not working/showing up, that sorta thing.

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one_love_420 said:
This is for anyone that wants to edit a /system/app and not want to re-sign their rom so that the framework and system apps have the same signatures. As i stated in the OP this is already done by many rom devs but this is for anyone that wants to make their own rom/edits. If this edit isn't done and signatures dont match on /system/apps then there will be problems, like not working/showing up, that sorta thing.
Click to expand...
Click to collapse
So sorry to seem dumb here but I have a oxed version so I can't decompile (which I dont know how to do anyway but I am sure there are tons of tutorials out there) But does anyone have this done for the stock services.jar?

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When to do your baksmali lines?
There wrote class.dex so after editing?
If before there's no class.dex yet, only jar.

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zhuhang said:
When to do your baksmali lines?
There wrote class.dex so after editing?
If before there's no class.dex yet, only jar.
Click to expand...
Click to collapse
You answered your own question... Decompile the .jar, make your smali edits, recompile .jar and voila its done.
Sent from my EVO using Xparent Blue Tapatalk 2

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zhuhang said:
When to do your baksmali lines?
There wrote class.dex so after editing?
If before there's no class.dex yet, only jar.
Click to expand...
Click to collapse
I'm not quite sure what this says? But "I think" what you're asking is you have no classes.dex in the .jar.That would mean you are not deodexed. The .odex is the classes.dex. I hope this answered your question if not please re-word your post.
Sent from my EVO using Tapatalk 2

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Dont think ive posted in this thread. but thank you one_love for this edit. has saved me many hours of my time trying to figure it out for this edit. Thank you!!

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thx! worked on my device on jellybean 4.1.2, really helped me out. im making minor edits on settings.apk and signing the whole rom each time was extremly frustating.
also, this one
java -Xmx1024M -jar baksmali.jar -l -b -o smali/ classes.dex
Click to expand...
Click to collapse
is very helpfull, too

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thx for great how to

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one_love_420 said:
This is how to disable signature checks using seo's code that has been around forever, now for the EVO LTE on ICS.
Gonna loosely quote SteelH's [How To] post opener:
This reference guide is to tell you what to edit to disable Signature Checks for the EVO 4G LTE in Services.jar. It is not an all-inclusive how-to on adb, decompiling/recompiling apks, etc. There are already several very good sources right here on XDA for that information.
Decompile Services.jar and look for \com\android\server\pm\PackageManagerService.smali
Code:
.method static compareSignatures([Landroid/content/pm/Signature;[Landroid/content/pm/Signature;)I
.locals 7
if-nez p0, :cond_8
if-nez p1, :cond_6
const/4 v6, 0x1
:goto_5
return v6
:cond_6
const/4 v6, -0x1
goto :goto_5
:cond_8
if-nez p1, :cond_c
const/4 v6, -0x2
goto :goto_5
:cond_c
new-instance v3, Ljava/util/HashSet;
invoke-direct {v3}, Ljava/util/HashSet;-><init>()V
move-object v0, p0
array-length v2, v0
const/4 v1, 0x0
:goto_14
if-ge v1, v2, :cond_1e
aget-object v5, v0, v1
invoke-virtual {v3, v5}, Ljava/util/HashSet;->add(Ljava/lang/Object;)Z
add-int/lit8 v1, v1, 0x1
goto :goto_14
:cond_1e
new-instance v4, Ljava/util/HashSet;
invoke-direct {v4}, Ljava/util/HashSet;-><init>()V
move-object v0, p1
array-length v2, v0
const/4 v1, 0x0
:goto_26
if-ge v1, v2, :cond_30
aget-object v5, v0, v1
invoke-virtual {v4, v5}, Ljava/util/HashSet;->add(Ljava/lang/Object;)Z
add-int/lit8 v1, v1, 0x1
goto :goto_26
:cond_30
invoke-virtual {v3, v4}, Ljava/util/HashSet;->equals(Ljava/lang/Object;)Z
move-result v6
if-eqz v6, :cond_38
const/4 v6, 0x0
goto :goto_5
:cond_38
const/4 v6, -0x3
goto :goto_5
.end method
Do a whole-sale .method change and replace the entire .method with this one:
Code:
.method static compareSignatures([Landroid/content/pm/Signature;[Landroid/content/pm/Signature;)I
.locals 7
const/4 v0, 0x0
return v0
.end method
p.s. you will notice that there is no .line numbers and the .registers are now .locals, that is because I use a different baksmali cmd than what is the norm. I use:
Code:
java -Xmx1024M -jar baksmali.jar -l -b -o smali/ classes.dex
notice the extra -l -b
the -l(thats a lower case L not and upper case i) changes the .registers to .locals and the -b removes the smali debugging stuff that is not needed. Most custom rom builders know about this edits but this is for the average user that would like to make edits on their own and want to make edits to system/apps.
One_Love
Click to expand...
Click to collapse
Hi
I do this with my servicer.jar from CM9 .It s work good editet apk work , but i can t install app in data/app ant app ther don t work .
Thanks

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Hey. Is it necessary to follow the last step to compile services.jar? I use Virtuous Ten Studio.

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Dom3616 said:
Hey. Is it necessary to follow the last step to compile services.jar? I use Virtuous Ten Studio.
Click to expand...
Click to collapse
Nah, using vts to decompile change that one file and then build the project. Grab the new jar from binary. Push to your phone and enjoy.
Sent from my EVO using xda app-developers app

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one_love_420 said:
This is how to disable signature checks using seo's code that has been around forever, now for the EVO LTE on ICS.
Gonna loosely quote SteelH's [How To] post opener:
This reference guide is to tell you what to edit to disable Signature Checks for the EVO 4G LTE in Services.jar. It is not an all-inclusive how-to on adb, decompiling/recompiling apks, etc. There are already several very good sources right here on XDA for that information.
Decompile Services.jar and look for \com\android\server\pm\PackageManagerService.smali
Code:
.method static compareSignatures([Landroid/content/pm/Signature;[Landroid/content/pm/Signature;)I
.locals 7
if-nez p0, :cond_8
if-nez p1, :cond_6
const/4 v6, 0x1
:goto_5
return v6
:cond_6
const/4 v6, -0x1
goto :goto_5
:cond_8
if-nez p1, :cond_c
const/4 v6, -0x2
goto :goto_5
:cond_c
new-instance v3, Ljava/util/HashSet;
invoke-direct {v3}, Ljava/util/HashSet;-><init>()V
move-object v0, p0
array-length v2, v0
const/4 v1, 0x0
:goto_14
if-ge v1, v2, :cond_1e
aget-object v5, v0, v1
invoke-virtual {v3, v5}, Ljava/util/HashSet;->add(Ljava/lang/Object;)Z
add-int/lit8 v1, v1, 0x1
goto :goto_14
:cond_1e
new-instance v4, Ljava/util/HashSet;
invoke-direct {v4}, Ljava/util/HashSet;-><init>()V
move-object v0, p1
array-length v2, v0
const/4 v1, 0x0
:goto_26
if-ge v1, v2, :cond_30
aget-object v5, v0, v1
invoke-virtual {v4, v5}, Ljava/util/HashSet;->add(Ljava/lang/Object;)Z
add-int/lit8 v1, v1, 0x1
goto :goto_26
:cond_30
invoke-virtual {v3, v4}, Ljava/util/HashSet;->equals(Ljava/lang/Object;)Z
move-result v6
if-eqz v6, :cond_38
const/4 v6, 0x0
goto :goto_5
:cond_38
const/4 v6, -0x3
goto :goto_5
.end method
Do a whole-sale .method change and replace the entire .method with this one:
Code:
.method static compareSignatures([Landroid/content/pm/Signature;[Landroid/content/pm/Signature;)I
.locals 7
const/4 v0, 0x0
return v0
.end method
p.s. you will notice that there is no .line numbers and the .registers are now .locals, that is because I use a different baksmali cmd than what is the norm. I use:
Code:
java -Xmx1024M -jar baksmali.jar -l -b -o smali/ classes.dex
notice the extra -l -b
the -l(thats a lower case L not and upper case i) changes the .registers to .locals and the -b removes the smali debugging stuff that is not needed. Most custom rom builders know about this edits but this is for the average user that would like to make edits on their own and want to make edits to system/apps.
One_Love
Click to expand...
Click to collapse
Done. But how to know it is working properly? I have copied to the phone and do not know, it works exactly as requested. Can not fault or whatever happened.
How to check it?

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dedichthui said:
Done. But how to know it is working properly? I have copied to the phone and do not know, it works exactly as requested. Can not fault or whatever happened.
How to check it?
Click to expand...
Click to collapse
This mod work. I recompile and sign systemui.apk before but it blank when flash it. After made this disable signature check and flash again it work like a charmed.
Sent from my lolipop phone

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hi
when i decompile Services.jar (g920p) 6.0.1 ican't find this path (\com\android\server\pm\PackageManagerService.smali)
how to disable signature verification on android marshmalow ?