MHD Wifi

typedRew

Sergeant
Feb 25, 2019
404
213
0
Ride
2009 335i xDrive
Nice! Curious is K-Line flash times are cut down as well. Right now with a cable it takes a minute to flash a short write map change.

mine is cut down for all map flashes but I was using a BMS cable not a bimmergeeks, it was previously 2:30 for mhd map switch and 2:10 for xhp flash. Now 1:09 and 0:56 Each.
 

Blaster3500

Sergeant
Nov 5, 2016
284
221
0
SC
mine is cut down for all map flashes but I was using a BMS cable not a bimmergeeks, it was previously 2:30 for mhd map switch and 2:10 for xhp flash. Now 1:09 and 0:56 Each.
I am using an old ebay cable and it takes right around a minute for a mhd map switch. I think this is due to the car being k-line (early 07 build). It would be awesome if those times are cut in half. Either way going wireless is totally worth it.
 

DCook

Sergeant
May 25, 2018
268
131
0
Ride
08 BMW e92
Anyone tried connecting to http://192.168.4.1 (or whatever your gateway address may be but I assume it's going to be the same for everyone) through your phone or tablet and taking a look at the settings of the WiFi-serial bridge of this device? If you were driving down the road, it seems someone could easily connect and change the AP settings for this dongle if the network is left insecure and leave you without a working device.

Might be best to secure the device after you get it by changing the SSID and setting WPA2 encryption.

Can someone from MHD chime in on this? Since no instructions come with the device (after all, it does plug & play well), it seems concerning that the security of the device hasn't been talked about.

I am curious on this, if so I'll leave it plugged in with a passcode. But gotta remember, if you forget the passcode, etc theres no way to "hard reset" it if it has memory. And if it does shut off, with no memory you'll be resetting a new passcode each time. Basically like a router with no memory or reset button.

However, to answer the other question, others asked even left plugged in i can still monitor the car, etc and it does stay on, key out/off. I have not tried to see if it shuts off and goes to "sleep" yet when the car does though.

And my time dropped 11 seconds, 1m 7s for wifi and 1m 18s for bimmergeeks cable flashing a map. Its just nice not having the cable is the big advantage so far i noticed.
 

nahor

Private
Sep 15, 2017
44
28
0
Ride
2010 BMW 135i Single Turbo
Has anyone tried this with multiple devices connected concurrently?
 

ShocknAwe

Captain
Jan 24, 2018
1,136
531
0
Charleston, SC
Ride
N54/3 1er ///Mutt
Would love if someone would take a battery reading with MHD before, leave their WiFi adapter plugged in overnight or over the weekend and take a new battery reading after it's been sitting and see how much it drew off.
 

scrllock

Sergeant
Dec 17, 2018
263
149
0
Ride
2011 335xi
Someone on FB confirmed that the adapter is still on with the car off, including the wifi AP. It'll probably take a while to drain it down, but if you let it sit for a couple weeks plugged in you'd probably need a jump.
 

Twisted Tuning

Lieutenant
Platinum Vendor
Oct 25, 2016
962
877
0
New York
www.twistedtuning.com
Ride
N54 and N55 Cars
Nice! Curious is K-Line flash times are cut down as well. Right now with a cable it takes a minute to flash a short write map change.

typically no improvement on kline

Has anyone tried this with multiple devices connected concurrently?

you can connect to the adapter with multiple devices as ive done it just to test. but on one connection to the ecu. if you try connecting to the ecu while one device is connected, it freezes he other connection


Someone on FB confirmed that the adapter is still on with the car off, including the wifi AP. It'll probably take a while to drain it down, but if you let it sit for a couple weeks plugged in you'd probably need a jump.


weve left it plugged in for afew weeks and had no battery issues
 

Rob09msport

Major
Oct 28, 2017
1,928
661
0
Monroe CT
Ride
09 335i msport le mans 18 x5
Only issue in ever had is shadow code for the drain and that is with a cable and tune2air on all time.
 

SlimE92

Private
Apr 1, 2019
34
31
0
Ride
E92 n54
I am using an old ebay cable and it takes right around a minute for a mhd map switch. I think this is due to the car being k-line (early 07 build). It would be awesome if those times are cut in half. Either way going wireless is totally worth it.
Does the wireless adapter work on the pre March 07 cars? I’ve heard only wired works due to the frm1. I have a elm wireless adapter that I used with Carly often before ignoring it now and switching to ProTool, and it never worked when trying to code early 07 cars.
 
Last edited:

typedRew

Sergeant
Feb 25, 2019
404
213
0
Ride
2009 335i xDrive
Light stays lit and connection shows available hours after car is off and locked.

unless your car is driven daily I doubt leaving it plugged in is a good idea
 
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Twisted Tuning

Lieutenant
Platinum Vendor
Oct 25, 2016
962
877
0
New York
www.twistedtuning.com
Ride
N54 and N55 Cars
Next MHD WiFi question - does it fit in the E89 slot? Stupid car design ... I had to grind down my Launch X431 BT adapter to fit in the hole.

Filippo
Does the wireless adapter work on the pre March 07 cars? I’ve heard only wired works due to the frm1. I have a elm wireless adapter that I used with Carly often before ignoring it now and switching to ProTool, and it never worked when trying to code early 07 cars.

My N54 is an 07. And it works. Kline cars will not see an improvement


Light stays lit and connection shows available hours after car is off and locked.

unless your car is driven daily I doubt leaving it plugged in is a good idea


Again, left plugged in for weeks. No issue. But in guess if you're storing the car there is no need for it to be plugged in
 
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SlimE92

Private
Apr 1, 2019
34
31
0
Ride
E92 n54
My N54 is an 07. And it works. Kline cars will not see an improvement





Again, left plugged in for weeks. No issue. But in guess if you're storing the car there is no need for it to be plugged in
Good to know.

Can’t wait until that mhd on iOS drops ..:)
 

[email protected]

Lieutenant
Oct 19, 2016
534
404
25
NY & AZ
vadersolution.com
Ride
N54 135i & N54 335i
Left the WiFi adapter plugged in all day as I’m driving around
2 issues

first ) 2ded check engine I’m assuming it’s from the adapter cause it never popped up before

second) logging quality sucks , the gauges freeze then go back to normal ever 3 second or less .
Anyone else have this issue ?
 

typedRew

Sergeant
Feb 25, 2019
404
213
0
Ride
2009 335i xDrive
2ded is an active code I get from leaving a cable in as well. So yeah I’d imagine it will pop for this.

haven’t had a freezing issue with my extremely cheap fire7 hd, logs normal for me

@mhd should have that code turned off for just this reason
 

[email protected]

Lieutenant
Oct 19, 2016
534
404
25
NY & AZ
vadersolution.com
Ride
N54 135i & N54 335i
red
2ded is an active code I get from leaving a cable in as well. So yeah I’d imagine it will pop for this.

haven’t had a freezing issue with my extremely cheap fire7 hd, logs normal for me

@mhd should have that code turned off for just this reason
i agree the 2ded is an issue and annoying I can easily modify that out of the hex binary. I will try another tablet
 
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