# MangOH green: SIM card is absent (LE\_SIM\_ABSENT)
**URL:** https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342
**Category:** Uncategorized
**Created:** [March 30, 2021, 9:55am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342 "2021-03-30T09:55:48Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 9:55am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/1 "2021-03-30T09:55:48Z")
Hi all!
I have a mangOH green. I bought a Hologram sim, I activated it on the Hologram website, but my mangOH green doesn’t detect it:
I managed to activate the APN well:
but the sim is not detected.
Below the image of the sim installed: isn’t it right?
isn’t it EXTERNAL\_SLOT1?
Instead, the embedded sim works well:
Have I to do other in order to see available Hologram sim in slot 1?
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 12:20pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/2 "2021-03-30T12:20:33Z")
The sim card slot is using the big card
You cannot make sure all the contact is connected
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 12:29pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/3 "2021-03-30T12:29:50Z")
the slot I used isn’t the EXTERNAL\_SLOT\_1 one?
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 12:37pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/4 "2021-03-30T12:37:24Z")
Yes, but it is using big card, not small card in phone
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 12:42pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/5 "2021-03-30T12:42:03Z")
Okay, I understand. But mangOH still doesn’t detect it…
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 12:45pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/6 "2021-03-30T12:45:07Z")
The log:
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 12:56pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/7 "2021-03-30T12:56:55Z")
Is problem only happening on this sim card?
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 12:59pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/8 "2021-03-30T12:59:06Z")
I haven’t other sim cards, but the embedded one seems to work… Sorry for the question, the detection of the sim should should be immediate, right? Shouldn’t I do anything on a software or fw level? Because at this point I’m starting to think that my board has some flaw.
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 1:23pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/9 "2021-03-30T13:23:46Z")
You can try power cycle
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 1:26pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/10 "2021-03-30T13:26:37Z")
yes I did…I don’t know why but now, when the sim is inserted, the mangOH goes in a loop…
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 2:28pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/11 "2021-03-30T14:28:07Z")
Probably not enough current
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 2:32pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/12 "2021-03-30T14:32:14Z")
I solved the problem of the loop by lowering and raising slot 7 of sw401. At this point I have still the same problem:
For power cycle do you mean turn off and turn on right? For this goal should I connect to the board to the electric grid? I’m powering the board by USB connection…
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 2:48pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/13 "2021-03-30T14:48:51Z")
You should try other sim card
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 30, 2021, 2:56pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/14 "2021-03-30T14:56:32Z")
no…but I verified that the embedded sim works…do you agree?
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 30, 2021, 11:14pm UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/15 "2021-03-30T23:14:51Z")
No, embedded sim is inside module
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 31, 2021, 8:34am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/16 "2021-03-31T08:34:21Z")
okay…Does exist a way to understand if card is detected? On the datasheet I see that gpio3 of inner ring indicates it…how can I do to detect this gpio3 on the oscilloscope? Could be it a way to understand if mangoh works or not? The company for which I work doesn’t want to buy another card 😓
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 31, 2021, 8:38am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/17 "2021-03-31T08:38:32Z")
You can use your sim card in mobile phone
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 31, 2021, 8:53am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/18 "2021-03-31T08:53:16Z")
Okay I used another SIM, but the result il always the same:
Could be a fw issure or hw issue or both? I really don’t understand
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### Author:  [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [March 31, 2021, 8:56am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/19 "2021-03-31T08:56:02Z")
Maybe hardware problem.
you can try following AT commands:
root@swi-mdm9x28-wp:~# microcom /dev/ttyAT
at+cpin?
+CPIN: READY
OK
at!gstatus?
!GSTATUS:
Current Time: 438597 Temperature: 31
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: B1 LTE bw: 15 MHz
LTE Rx chan: 374 LTE Tx chan: 18374
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle
PCC RxM RSSI: -71 RSRP (dBm): -93
PCC RxD RSSI: -91 RSRP (dBm): -116
Tx Power: – TAC: 2A95 (10901)
RSRQ (dB): -3 Cell ID: 016D991F (23959839)
SINR (dB): 26.0
OK
at+cfun?
+CFUN: 1
OK
at!uims?
!UIMS: 0
OK
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### Author:  [@gavinoimparato1](https://mangoh.discourse.group/u/gavinoimparato1)
#### Post date: [March 31, 2021, 10:05am UTC](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342/20 "2021-03-31T10:05:23Z")
The results:
[Next page](https://mangoh.discourse.group/t/mangoh-green-sim-card-is-absent-le-sim-absent/7342.md?page=2)