Dear Friends.
I have a BMW 120i vehicle of 2016 with FEM all the keys lost. I have the ISN I also have the FEM unlocking file. At the time of programming the key, Autohex asks me to use a 434Mhz key. After carrying out the programming the car starts the engine only by putting the key in the emergency antenna, the presence does not work and the remote does not work to open and close the doors. buy another 434 Mhz key from CODIFICAR -MERCOKEY Spain and the behavior is the same.
please I need your help to find a solution to this problem
Thank you for your comment

What frequency does your car support? For Europe 868Mhz...for USA sure 434Mhz...I don't know for Peru.

 RECEPTOR DE FRECUENCIA.JPG You have insufficient rights to see the content.
I am sure frecuency is 434Mhz

 RECEPTOR DE FRECUENCIA.JPG You have insufficient rights to see the content.
I am sure frecuency is 434Mhz

You need to buy orginal KEY, or second hand (but second hand key need to unlock) , program the key , job done

I had a bmw m4 2015 with 434mhz , and i had the same issue, i could not use remote. I believed that the key that i renew was defect but it may be an issue at autohex. Sadly i do not have more keys to test. Now i ordered more keys and i will share the rezults..

I am programming several keys for this vehicle as a test, what happens if the lockers where the keys are programmed are filled?
Can a key be recorded in a position already used?
Can the FEM be restored to be seen with zero programmed keys?
I got an original BMW key with frequency 315 MHz, I converted it to 433 using software. Then Tango tells me that it is a 433, but using a frequency reader, it does not read me how frequently it currently has. On the other hand, if I write the software of 315, tango and the frequency reader tells me that they are 315MHz
I await your comments.

I'm having a same issue with 434mhz HUF5767 remotes. It will start the car only if i touch it with coil ,otherwise it won't detect or perform any keyless functions. I have unlocked and programmed 3 fem modules that were 434mhz on 3 different cars and so far none of the unlocked 434mhz remote HUF5767 worked except it will start the car . No sure if its the remote or something else. Has anyone figured this out ? Just want to mention this that all of 3 keys were unlocked using MK3 and it shows that they were unlocked.

For everyone please see carefully this video

how to programming FEM Key , everythink working fine
This procedure is from BMW Explorer , not every ECU is supported for now , BMW Explorer make new update/ and fixed bug 8-02-2018 , I think we need to waiting for new Autohex software and everythink will works fine .

I have the same problem after unlock, add key(315 USA) to position 6 and the car starts only if the key close to the coil, any idea why and if there is a solution I want to know!
Thanks

how to programming FEM Key , everythink working fine
This procedure is from BMW Explorer , not every ECU is supported for now , BMW Explorer make new update/ and fixed bug 8-02-2018 , I think we need to waiting for new Autohex software and everythink will works fine .

I have consulted many friends about this case and almost the majority have had problems with the frequency 434Mhz, There are some who say that Explorer works at 99% in FEM, I have also heard that Chinese machines do not have problems with this type of FEM. I am about to get a used key of this Type 434Mhz (original used) is only question of a few days that comes to my hands. I will be commenting and I also await your comments.
Thank you

Hello guys,
Last week i was struggling with a FEM 434 key, i head same problem like all of you, but eventually i got it to work, all the functions on the key work and the car start with the key in the pocket. Costumer happy, i am happy, and i got payed which make me even more happy lol.
So how did i do it you probably want to know, well after a long research i find out that oem key after a unlock get loaded with a old firmware in them that are not compatible with ews5 system that the fem are equipped with (this is my theory)!
solution:i got a good a original key with the right frequency, add the to one of the available positions and the key worked ride away !
Hope i helped some how!
this is the key that worked for me :
http://www.onlyda.com/product-2731 

Hello guys,
Last week i was struggling with a FEM 434 key, i head same problem like all of you, but eventually i got it to work, all the functions on the key work and the car start with the key in the pocket. Costumer happy, i am happy, and i got payed which make me even more happy lol.
So how did i do it you probably want to know, well after a long research i find out that oem key after a unlock get loaded with a old firmware in them that are not compatible with ews5 system that the fem are equipped with (this is my theory)!
solution:i got a good quality after market key with the right frequency, add the to one of the available positions and the key worked ride away !
Hope i helped some how!

Congratulations friend for that achievement, I also think that the problem is the key. that's why I ordered a new Mercokey key. but it did not work either. Can you please tell me where you bought the key from?
thanks for your help

Hello guys,
Last week i was struggling with a FEM 434 key, i head same problem like all of you, but eventually i got it to work, all the functions on the key work and the car start with the key in the pocket. Costumer happy, i am happy, and i got payed which make me even more happy lol.
So how did i do it you probably want to know, well after a long research i find out that oem key after a unlock get loaded with a old firmware in them that are not compatible with ews5 system that the fem are equipped with (this is my theory)!
solution:i got a good quality after market key with the right frequency, add the to one of the available positions and the key worked ride away !
Hope i helped some how!

Congratulations friend for that achievement, I also think that the problem is the key. that's why I ordered a new Mercokey key. but it did not work either. Can you please tell me where you bought the key from?
thanks for your help

http://www.onlyda.com/product-2731 

Just found this
http://www.autokeys.us/p...details.php?item_id=3401 

From this website everyone key working I never had any problem , if some keys is not available on website please write message and people find for you right key.
https://auto-keys.eu/ind...ategory&path=179_369 

Hey Guys, i FINALLY was able to get these remote to work all the way like they should . The issue is with remotes . I bought some brand new remotes from ebay which came from china and they worked perfectly fine. Do not buy used remotes that are unlocked or reset because they will not work and i tried 6 different ones. They will work on older cars but not the new 433 or 434mhz. Here is the link of ebay listing where i bought these. GOODLUCK
https://www.ebay.com/itm...sid=p2057872.m2749.l2649 

Hello guys,
Last week i was struggling with a FEM 434 key, i head same problem like all of you, but eventually i got it to work, all the functions on the key work and the car start with the key in the pocket. Costumer happy, i am happy, and i got payed which make me even more happy lol.
So how did i do it you probably want to know, well after a long research i find out that oem key after a unlock get loaded with a old firmware in them that are not compatible with ews5 system that the fem are equipped with (this is my theory)!
solution:i got a good a original key with the right frequency, add the to one of the available positions and the key worked ride away !
Hope i helped some how!
this is the key that worked for me :
http://www.onlyda.com/product-2731 

Well, apparently I bought keys from Olynda just as suggested here but same issue. Key only starts wen you hold to ignition coil.

Autokeys.us is even worse. The key doesn’t even started car when you hold key close to ignition.


Has anyone been able to find a supplier of working 434 keys?

Hello guys,
Last week i was struggling with a FEM 434 key, i head same problem like all of you, but eventually i got it to work, all the functions on the key work and the car start with the key in the pocket. Costumer happy, i am happy, and i got payed which make me even more happy lol.
So how did i do it you probably want to know, well after a long research i find out that oem key after a unlock get loaded with a old firmware in them that are not compatible with ews5 system that the fem are equipped with (this is my theory)!
solution:i got a good a original key with the right frequency, add the to one of the available positions and the key worked ride away !
Hope i helped some how!
this is the key that worked for me :
http://www.onlyda.com/product-2731 

Well, apparently I bought keys from Olynda just as suggested here but same issue. Key only starts wen you hold to ignition coil.

Autokeys.us is even worse. The key doesn’t even started car when you hold key close to ignition.


Has anyone been able to find a supplier of working 434 keys?

Hi
here you have very good keys but this is in the Europe everyone key working.
https://auto-keys.eu/ind...ategory&path=179_369