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| Hello |
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Posted by: engineer002 - 04-07-2021, 07:55 AM - Forum: New Member Intro
- No Replies
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Hi All, not new to BMW, but new to coding hoping to get some help and make friends on the way. Currently have F20 (LCI) 125d just fitted leather interior with heathed seats (looking to code the heated seats function
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| Bench Setup not working with NBT Evo |
Posted by: Tuerkay![]() - 04-06-2021, 10:18 PM - Forum: BMW F / G Series Coding & Retrofits & Diagnostics
- Replies (20)
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Hi all,
i´m currently stuck on a miserable situation. An iLevel update bricked my NBT Evo which is now stuck on flash mode after having successfully flashed BTLD. The full story on how i messed up is written below.
Now if i try to reflash SWFL in car, it will always start with slow UDS protocol. Since flashing that way would take 2-3 days, i want to have a backup option in case i can´t get flashing via enet/http working again.
For bench flashing, i have an ZGW2-8SK with an arduino for wake up (sketch below). With this i was able to flash some ECUs like ICAM, TRSVC and REM without any issues. However, if i connect the EVO to that ZGW, it won´t show up on ėšÝ§ or ÎŜ†Ä. i´m able to ping it (169.254.199.99 and 169.254.199.119) but can´t do anything else.
i think one of the reasons for the flash fail is the fact, that the seller didn´t gave me a G30 unit with GPS connector like he said but an F20 one with soldered GPS module and activated via adjust block.
Can someone tell me how to get the Evo to show up in ėšÝ§ on my bench setup or a way to flash HU with OABR to RJ45 connection?
A kind user from another forum tried to fix my issue via VPN but it didn´t work since the VPN connection wasn´t stable enough to safe any changes he tried to make.
i got offers from some coders to fix my HU if i ship it to them but shipping cost and time to outside Germany/EU is very pricey and would take much time so i hope i can somehow fix it myself...
Arduino code:
Code: #include <SPI.h>
#include <mcp2515.h>
static can_frame message1;
static can_frame message2;
MCP2515 mcp2515(9);
void setup() {
message1.can_id = 0x130; //formatted in HEX
message1.can_dlc = 5; //formatted in DEC
message1.data[0] = 0x45;
message1.data[1] = 0x40;
message1.data[2] = 0x22; //formatted in HEX
message1.data[3] = 0x8F;
message1.data[4] = 0xFE;
message2.can_id = 0x12F; //formatted in HEX
message2.can_dlc = 8; //formatted in DEC
message2.data[0] = 0x37;
message2.data[1] = 0x7C;
message2.data[2] = 0x8A;
message2.data[3] = 0xDD; //formatted in HEX
message2.data[4] = 0xD4;
message2.data[5] = 0x05;
message2.data[6] = 0x33;
message2.data[7] = 0x06;
mcp2515.reset();
mcp2515.setBitrate(CAN_500KBPS);
mcp2515.setNormalMode();
}
void loop() {
mcp2515.sendMessage(&message1);
mcp2515.sendMessage(&message2);
delay(80);
}
Full Story:
Code: here i´m with a new problem. This time i think i realy f***** up and bricked my HU. I had an retrofited NBT Evo in my F20. An GPS model from an G30.
I received the HU precoded for plug&play. Came with iLevel 18-07 so i think it was prepared with HUTool 2.6.
For a while know i had some issues with the HU:
Sometimes not starting/refreshing Connected drive Services like weather/rtti until i turn off ignition and lock car
ÎŜ†Ä permanently showing SDARS Error
HU won´t connect to my Android Smartphone until i reboot Headunit
Some forum members and a BMW dealership told me that this is an softwarebug and i had to reflash/update the HU to get rid of these issues.
Therefore i went ahead and updated my HU to 20-07. ėšÝ§ took about 1h 20min for the full flash and threw no errors.
After a reboot the screen stayed black. Since car also has a G30 10,25 screen installed, i read cafd, changend fdl to 10,25 touch and id6_light and coded it. Still the screen was black.
i startet ÎŜ†Ä and read DTCs. Found the error "B7F8F7 HU-H: software manipulation". checked measurement plan and it said i should recode HU, so i did the steps above again but still no difference. Could erase DTC but it would pop again after a few seconds. So i thought "maybe just flash again, similar things already happened" (had some other ECUs like REM/ICAM2 that i had to flash two times with current istep to make them work).
Bootloader flashed within seconds without issues. swfl startet flashing and after a few seconds, ėšÝ§ froze, was set to "not responding" by windows and a few minutes later was closed. Rebooted my laptop, connected ėšÝ§ again restartet flashing process. this time without bootloader. the Step "preparing ECU for flash" took much longer this time before starting to flash SWFL. shortly after the start i realized it was much slower than before. A closer look revealed that it was flashing through UDS instead of ethernet/http. I stopped the flashing (it finished the current swfl before) and checked preferences. "deaktive HTTP" was unchecked and "Switchable ECU" was checked. Opened TAL-Editor, changed "preferredProtocol" to HTTP and startet flashing again. Still started flashing with UDS.
Checking psdz.log showd the Error "38000: ECU signaled that any ProgrammingPreCondition not fullfilled, but no further details provided from ECU!"
Since i don´t have a garage and couldn´t leave my car unlocked for hours/days with my laptop in it and a power supply connected, i removed the HU and wanted to flash on bench with my ZGW2-8Sk (it has an build in Arduino to spam wake-up messages on CAN2).
This is the first time i tried to flash an HU on bench (did several other ECUs, Kombis, etc). Placed an CAN-Filter between HU and ZGW. Connected Ethernet
OABR ZGW(Blue Connector)
17 <----> 11
18 <----> 9
19 <----> 12
20 <----> 18
and also connected PIN29 in Quadlock to 12V+ with an 1kOhm resistor.
If i turn the powersupply on, i can connect to the ZGW with ėšÝ§ but reading ECUs will only show the ZGW and nothing else. (a also tried connecting 120Ohm resistors on both ends of CAN2)
The HU will always boot, no matter what´s connected. Even if i unplug everything and only connect 12V+GND, it will power up in flash mode.
that´s the point, where i´m stuck. How can i fix what i might have messed up? is it even fixable?
After some research i found that "B7F8F7 HU-H: software manipulation" might happen because of some kind of sanity check that has to be removed via ssh. I think seller also changed HWEL to 2FC2 since Tool32 shows "NBT EVO id5 (no GPS)" while it has an gps connector. i tried to contact the seller before updating but the only answer i got was "why update the HU?" and no further messages.
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| New to the forum, not to coding |
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Posted by: Mrashton - 04-05-2021, 10:26 PM - Forum: New Member Intro
- No Replies
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Hello all and thanks for allowing me access to the forum.
I have been coding my own and also helping members on other forums with their own coding (or doing it for them in a number of cases) for many years.
My first BMW was an F11 back in 2011 and I now own a G32 and a F45.
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