Android 4.4.3 support

Discussions about running the rSAP app on the LG Nexus 5
cimst
Posts: 12
Joined: Wed Nov 06, 2013 7:12 pm

Re: Android 4.4.3 support

Post by cimst » Sun Jun 08, 2014 3:57 pm

admin wrote:I fear we have to live with the old radio, it's quite complicated to find a solution for this problem. Since it works with the old radio something must have changed inside the radio software. But how to find out? In the meantime I'm at least able to load this into IDA, but it's a 45 MB binary for an unknown CPU (at least for me) :shock:
The IDA database has more than 500 MB and IDA is slow as a snail and it seems it crashes frequently. Doesn't look good...
That is a bad announcement, if it is the final decision. So anyone who doesn't want to combine different parts from different builds will not be able to use it anymore?

admin
Site Admin
Posts: 4133
Joined: Wed Mar 23, 2011 4:12 pm

Re: Android 4.4.3 support

Post by admin » Mon Jun 09, 2014 10:34 am

I did not yet give up ;)
But currently I'm still clueless what I can do to fix it :(

delicats
Posts: 15
Joined: Fri Dec 13, 2013 10:44 pm

Re: Android 4.4.3 support

Post by delicats » Mon Jun 09, 2014 10:13 pm

Hi,

Unfortunately I uptated to 4.4.3 before seeing the warning.

So today I downgraded the radio as recommended. It works but now the phone drains heavily the battery... 40% battery after 7 hours with cell standby of 57% although I've been in the car for 3 hours.

Anybody with the same problem?

Cheers
Dirk

Brian
Posts: 5
Joined: Fri Jun 06, 2014 9:37 am

Re: Android 4.4.3 support

Post by Brian » Mon Jun 09, 2014 10:16 pm

Hi Dirk,

I'm 8 hours on battery with 81% left with this particular setup...

What radio did you flash?

Brian

delicats
Posts: 15
Joined: Fri Dec 13, 2013 10:44 pm

Re: Android 4.4.3 support

Post by delicats » Tue Jun 10, 2014 12:02 am

Hi Brian,

I took the

D820 KOT49E (4.4.1)
M8974A-1.0.25.0.23
AAAAANAZQ1025019
by QUALCOMM Incorporated Nov 19 2013

from

http://downloads.codefi.re/autoprime/LG/Nexus_5/Modems

I rebooted a couple of times, but it did not help. Interestingly the cell standby used power also during the time when I've been in the car and the phone radio was turned off (via rSAP). Looking at the curve in 'history details' shows that in the first 5 hours it consumed most (2/3) with medium signal strength (using LTE) and then with no signal (rSAP) and after a good signal (3G) another third.

Tomorrow I'll try if LTE does make the difference. But before I did not observe a very significant differnce while ideling...

Anyhow, all this does not help reg. the main problem. I googled a bit today at lunchtime and found that just in the AOSP part there were more than 7000 changes between 4.4.2 and 4.4.3. In addition all the undocumented chnages in the binaries...

Is there any further info on the error available? Even though the old radio fixes the issue, does the RIL of 4.4.3 not need to reflect the changes of there radio, if there is one regarding interface towards the RIL?

cheers

dirk

bernstein
Posts: 16
Joined: Tue Jun 10, 2014 8:53 am

Re: Android 4.4.3 support

Post by bernstein » Tue Jun 10, 2014 9:06 am

In the beginnin 4.4.3 (4.4.2-radio) would drain my battery, too.
Overnight loss was 10-15%, with g-now turned off.
It has improved day by day, tonight: 5% loss, even with g-now turned on!

In the changelog are "several Bluetooth enhancements for stability" mentioned, i suppose those are our troublemaker!?

@ admin: If you need testers: please let us/me know.
Last edited by bernstein on Tue Jun 10, 2014 10:42 am, edited 1 time in total.

Mandulli
Posts: 21
Joined: Sun Aug 19, 2012 9:10 pm

Re: Android 4.4.3 support

Post by Mandulli » Tue Jun 10, 2014 10:07 am

I can confirm the problem. with the old baseband rasp works perfectly with the new not.

delicats
Posts: 15
Joined: Fri Dec 13, 2013 10:44 pm

Re: Android 4.4.3 support

Post by delicats » Tue Jun 10, 2014 1:33 pm

I agree, the power consumption of the phone seems to decrease...as if it is learning something.

But I found another side effect of 4.4.3 (in combination with the 4.4.1/2 radio at least):

My car phone does not recognize the nexus rsap all times. Out of may be ten tomes it happens 4 times. If it try manually to find it as rsap phone the car can not find it. Then either turning BT or rasap off and on again, followed by a manual search for the phone helps (Mercedes sap v4).

Cheers
Dirk

cimst
Posts: 12
Joined: Wed Nov 06, 2013 7:12 pm

Re: Android 4.4.3 support

Post by cimst » Tue Jun 10, 2014 9:29 pm

admin wrote:I did not yet give up ;)
But currently I'm still clueless what I can do to fix it :(
There were only 20 commits for bluetooth, does the following link help?
https://android.googlesource.com/platfo ... /bluedroid

bernstein
Posts: 16
Joined: Tue Jun 10, 2014 8:53 am

Re: Android 4.4.3 support

Post by bernstein » Wed Jun 11, 2014 7:51 am

These are the commits for android.
But as admin wrote, android 4.4.3 itself seems not to be the problem, the nexus 4 with 4.4.3. works as good as with 4.4.2. And the n5 on 4.4.3 with the old radio works, too.

The problem lies within the radio software that came bundled with 4.4.3 on the N5. And that is not open-source.

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