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Cinterion
®
LGA DevKit User Guide
10.3 Errata/Troubleshooting
27
lga_devkit_ug_v02
2019-05-27
Preliminary
Page 27 of 28
PCB B22 Module Rotation Detecting Limited
The LGA DevKit's PCB revision B22 - built in a smaller quantity - has a limited rotation detect-
ing. If the DevKit is powered by native USB and the module is inserted upside down, the error
detecting is limited and may allow drawing a limited current (max 20mA) into pad#11/212. The
module may get damaged. This limitation will be fixed in an upcoming version.
PCB B22 Footprint Detection Limited
The LGA DevKit's PCB revision B22 - built in a smaller quantity - has a limited footprint detec-
tion. Modules with bold lettering "QUALCOMM" (e.g., EXS81) or wrongly positioned RohS sym-
bol (e.g., ELS61/81) on the module's bottom side, might be detected as a wrong footprint and
will therefore not be powered-up. This limitation will be fixed in an upcoming version.
PCB B22 Error LED/ TXD0 LED
The LGA DevKit's PCB revision B22 has a softly glowing error LED. Also, when no module is
inserted the TXD0 LED glows softly. This optical defect will be fixed in an upcoming version.
PCB B22 Marking
With the LGA DevKit's PCB revision B22 the following markings are swapped:
•
DAT and CLK at the GPIO pin headers
•
IO13 and VDLP at the FREE GPIOS pin headers
EHS5/6/8
Early samples of EHS5/6/8 require an additional circuit and pad to turn on the module. The so-
called AUTO_ON pad can either be pad 79 (EHS5) or pad 72 (EHS6/8). These early samples
are not be supported by the LGA DevKit.