The following is printed on the chips:

Qualcomm-Chip PM8918 (maybe power management):

```
QUALCOMM
PM8918
001

   BGSU717
•  E352002
```

Smaller chip besides the PM8918, WCN3620 (seems to have to do something with wireless and beeing from Qualcomm, documentation I have found: [→ "WCN3620 Wireless Connectivity IC Device Specification"](https://developer.qualcomm.com/qfile/29369/lm80-p0436-33_b_wcn3620_wireless_connectivity_ic_device_spec.pdf), [→ "WCN3620 Wireless Connectivity IC Design Guidelines"](https://developer.qualcomm.com/qfile/33509/lm80-p0436-25_wcn3620_wireless_connectivity_ic_design_guidelines.pdf)):

```
WCN3620
OVV
7R47835
BD45005

•06
```

On the other side of the circuit board:

Not-so-small square chip beside the (unused) coaxial antenna connector (probably a GSM/GPRS/EDGE cellular network signal amplifierby skyworks, [→ summary PDF](https://www.skyworksinc.com/-/media/SkyWorks/Documents/Products/2201-2300/SKY77916_21_203742B.pdf)):

```
•


77916-21
3582480.1
1641   MX
```

Rectangular chip beside (probably an UMTS/LTE amplifier by skyworks, [→ summary PDF](https://www.skyworksinc.com/-/media/SkyWorks/Documents/Products/2101-2200/SKY77643_11_203396E.pdf)):

```
•


77643-11
625413.1P
1546  MX
```

Small rectangular chip somewhat in the middle of the PCB (probably a RF Transceiver):

```
    QUALCOMM
     WTR4905
         1VV

    TGT44800
     AE60701
•         45
```  
*(the writing is so tiny that I am not really sure if I have read everything correctly. Especially, I am not completely sure with `TGT44800` (`TGT` could also be `TCT` and `44800` could also be `44900`) and the last `45` (could also be `4S`).)*

Big chip besides the USB port (probably the flash chip):

```
   SKhynix
   H9TP32A4G0CC
   PRKGM  5904A

• 2MXQT663Q4
```

Next big chip (probably the SoC, [→ seems to be Linux mainline kernel compatible](https://wiki.postmarketos.org/wiki/Qualcomm_Snapdragon_410/412_(MSM8916)), [→ information](https://www.qualcomm.com/products/application/smartphones/snapdragon-4-series-mobile-platforms/snapdragon-processors-410), ARM Cortex A53 quad core 64bit):

```
QUALCOMM
MSM8916
1VV

     AUR60306
• N   E161400
```