# Error executing mux **URL:** \ **Category:** mangOH Green\ **Created:** [May 16, 2016, 6:58am UTC](https://mangoh.discourse.group/t/error-executing-mux/61 "2016-05-16T06:58:12Z")\ **Posts on this page:** 16\ **Page:** 2
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 19, 2016, 4:15am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/21 "2016-05-19T04:15:43Z")
Hello Ashish, Confirmed version 7 after rail removed. root@swi-mdm9x15:~# dmesg|grep i2c [0.184800] unmatched machine ID in register\_i2c\_devices [0.971341] swimcu\_i2c\_init: start [0.974637] swimcu\_i2c\_probe: start 1 [0.986906] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [0.993285] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.003448] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [1.009064] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.025179] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.030795] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.046909] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.052495] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.068640] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.074256] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.090370] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.095956] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.743171] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.748878] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.758950] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [1.764565] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.776010] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.781687] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.791545] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [1.797161] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.808393] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.814008] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.825667] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [1.831344] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [2.041873] wm8944\_i2c\_init [2.041965] wm8944\_i2c\_probe [2.049076] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [2.058263] qup\_i2c qup\_i2c.0: I2C slave addr:0x1a not connected [2.088631] i2c-core: driver [tabla-i2c-core] using legacy suspend method [2.094368] i2c-core: driver [tabla-i2c-core] using legacy resume method [2.837356] i2c /dev entries driver [14.687501] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x11143c8, irq:187 [14.694185] qup\_i2c qup\_i2c.0: I2C slave addr:0x10 not connected root@swi-mdm9x15:~# app status [running] arduinoBridge [running] audioService [running] avcService [running] cellNetService [running] dataConnectionService [running] dataRouter [running] fwupdateService [stopped] gpioExpanderDemo [running] gpioService [running] modemService [running] mqttClient [running] muxCtrlService [stopped] muxCtrlTools [running] positioningService [running] powerMgr [running] secStore [stopped] smsInboxService [stopped] tools [stopped] voiceCallService [stopped] wifi [stopped] wifiApTest [stopped] wifiClientTest [running] wifiService [stopped] wifiWebAp root@swi-mdm9x15:~# Seem like gpioExpanderService disappear again. ??? Best regards, CSLEE ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [May 19, 2016, 9:19pm UTC](https://mangoh.discourse.group/t/error-executing-mux/61/22 "2016-05-19T21:19:46Z")
Here is the system file which works on my target. Please try this and lets take it from there: [https://drive.google.com/file/d/0B0lsYcy39bEldWFocjZDeVNENGs/view?usp=sharing](https://drive.google.com/file/d/0B0lsYcy39bEldWFocjZDeVNENGs/view?usp=sharing) ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 12:15am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/23 "2016-05-20T00:15:52Z")
Hello Ashish, Update my mangOH with your system file. it rebooted 4 times, same as using my system file. root@swi-mdm9x15:~# dmesg|grep i2c [0.185472] unmatched machine ID in register\_i2c\_devices [0.974149] swimcu\_i2c\_init: start [0.977414] swimcu\_i2c\_probe: start 1 [0.989684] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [0.996093] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.006226] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1300c4, irq:187 [1.016236] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.021852] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.037997] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [1.043613] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.059728] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.065344] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.081458] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.087044] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.733740] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1300c4, irq:187 [1.741095] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.746711] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.758187] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1300c4, irq:187 [1.765542] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1300c4, irq:187 [1.772867] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1343c8, irq:187 [1.778483] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [1.789500] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1363c8, irq:187 [1.795116] qup\_i2c qup\_i2c.0: I2C slave addr:0x3a not connected [2.023409] wm8944\_i2c\_init [2.023531] wm8944\_i2c\_probe [2.023805] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x1300c4, irq:187 [2.059667] i2c-core: driver [tabla-i2c-core] using legacy suspend method [2.065588] i2c-core: driver [tabla-i2c-core] using legacy resume method [2.808637] i2c /dev entries driver [14.710392] qup\_i2c qup\_i2c.0: QUP: I2C status flags :0x11143c8, irq:187 [14.716282] qup\_i2c qup\_i2c.0: I2C slave addr:0x10 not connected root@swi-mdm9x15:~# app status [running] arduinoBridge [running] audioService [running] avcService [running] cellNetService [running] dataConnectionService [running] dataRouter [running] fwupdateService [stopped] gpioExpanderDemo [running] gpioService [running] modemService [running] mqttClient [running] muxCtrlService [stopped] muxCtrlTools [running] positioningService [running] powerMgr [running] secStore [stopped] smsInboxService [stopped] tools [stopped] voiceCallService [stopped] wifi [stopped] wifiApTest [stopped] wifiClientTest [running] wifiService [stopped] wifiWebAp gpioExpanderService still missing!! Best regards, CSLEE ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [May 20, 2016, 12:23am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/24 "2016-05-20T00:23:07Z")
ok…so obviously it is not system definition file. **There is no reason for 4 the times reboot. That shouldnt happen.** Can you tell me the SKU# of your module? Can you attach your complete log file? Can you make sure that firmware is properly downloaded to your unit? ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [May 20, 2016, 12:41am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/25 "2016-05-20T00:41:05Z")
can you also run the following AT commands: root@swi-mdm9x15:~# microcom -E /dev/ttyAT AT!PACKAGE? AT!PRIID? ati ati8 ctrl+X to get out also run in linux: root@swi-mdm9x15:~# ls /dev/i2c-0 /dev/i2c-0 ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 1:24am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/26 "2016-05-20T01:24:12Z")
Hello Ashish, login as: root Linux swi-mdm9x15 3.14.29ltsi-13c67b16ff\_922830eb31 #2 PREEMPT Fri Apr 15 02:38:16 PDT 2016 armv7l GNU/Linux root@swi-mdm9x15:~# microcom -E /dev/ttyAT AT!ENTERCND="A710" OK AT!SKU? SKU: 1102816 OK AT!PACKAGE? 1102816\_9905383\_WP8548\_07.08.02.00\_00\_Generic\_001.002\_000 OK AT!PRIID? PRI Part Number: 9905383 Revision: 01.04 Carrier PRI: 9999999\_9904559\_SWI9X15Y\_07.09.02.00\_00\_GENERIC\_001.019\_000 OK ati Manufacturer: Sierra Wireless, Incorporated Model: WP8548 Revision: SWI9X15Y\_07.09.02.00 r31541 CARMD-EV-FRMWR1 2016/03/31 20:05:28 IMEI: 359377060011672 IMEI SV: 41 FSN: LL540300070203 +GCAP: +CGSM,+DS,+ES OK ati8 Legato Ver: 16.01.2\_38e3f9b51e83d1f5347fec58e0ee6a52\_modified Yocto Ver: SWI9X15Y\_07.09.02.02 Fri Apr 15 02:39:24 PDT 2016 OS Ver: Linux version 3.14.29ltsi-13c67b16ff\_922830eb31 (gsmbuild@CARMD-EV-FRMWR1) (gcc version 4.9.1 (GCC) ) #2 PREEMPT Fri Apr 15 02:38:16 PDT 2016 LK Ver: 1.3.0\_a50272dbb2 RootFS Ver: unknown UserFS Ver: unknown OK The download of FW is following the procedure that you’ve attached in your previous email. As for the log file, I do it later. Best regards, CSLEE ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 1:33am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/27 "2016-05-20T01:33:48Z")
Hello Ashish, The log file: [https://drive.google.com/file/d/0BxmbKQmHXSZAdVlkTVNoMUJlcFE/view?usp=sharing](https://drive.google.com/file/d/0BxmbKQmHXSZAdVlkTVNoMUJlcFE/view?usp=sharing) Best regards, CSLEE ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 1:47am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/28 "2016-05-20T01:47:01Z")
Hello Ashish, I am using a windows laptop to download my firmware via USB. I have another laptop running Ubuntu. Is there another way to download the firmware using Ubuntu? I want to eliminate the possibilities of corrupted file download by windows systems. Best regards, CSLEE ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [May 20, 2016, 1:53am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/29 "2016-05-20T01:53:17Z")
Hi CS, Can you also do the following: a. power off the board b. use the removal tool, to remove the cover c. re-insert the module d. put back the cover I am wondering if the module is properly inserted or not. Also, take a multimeter and check the impedance you measure on pins 9 & 11 of CN602 before removal and after re-inserting the module. cheers, Ashish ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 2:28am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/30 "2016-05-20T02:28:10Z")
Ashish, Before removal is about 3.800KOhm and after removal is about 287KOhm and increasing. Power on, still reboot for 4 times. It did not solve the problem. Best regards, CSLEE ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 2:29am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/31 "2016-05-20T02:29:26Z")
Ashish, It seem like download firmware only using windows. Any alternative? Best regards, CSLEE ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [May 20, 2016, 2:41am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/32 "2016-05-20T02:41:07Z")
looking at the log files, seem like cant find 0x71 I2C buffer (U701). Can you check if there is anything wrong in that area? Based on what you sent Windows download looks fine to me. ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 5:00am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/33 "2016-05-20T05:00:13Z")
Hi Ashish, Found the IC see attached. ![](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/1X/66eeab72fbacc9c4aed515e70f8ceab8392e5aec.JPG) What can I do with it? Check short/open trace? Best regards, CSLEE edit: Seem all solder ok under magnifying glass. ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [May 20, 2016, 5:10am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/34 "2016-05-20T05:10:12Z")
Can you do a short test between: CN602-9 & U701-20 CN602-11 & U701-19 It could be there is a problem with this part (whether improperly soldered, damaged by handling etc.). ---
**Author:** ![cslee](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cslee](https://mangoh.discourse.group/u/cslee)\ **Post date:** [May 20, 2016, 5:27am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/35 "2016-05-20T05:27:31Z")
Hi Ashish, Connection OK. (from a little help from a co-worker and tiny little pin). CN602-9 & U701-20 are connected (~2 Ohms) CN602-11 & U701-19 are connected (~2 Ohms) Both are not shorted together. Best regards, CSLEE ---
**Author:** ![asyal](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/asyal/32/78_2.png) [@asyal](https://mangoh.discourse.group/u/asyal)\ **Post date:** [March 6, 2017, 5:19am UTC](https://mangoh.discourse.group/t/error-executing-mux/61/36 "2017-03-06T05:19:26Z")
Closed on March 6, 2017, 5:19am UTC [Previous page](https://mangoh.discourse.group/t/error-executing-mux/61.md?page=1)