Special thanks for this information from Casa Luna Cotacachi
RENEWAL OF YOUR CEDULA as a foreigner, DONE BY YOURSELF = ALL EASY !!!
Just did the renovation of my cedula by myself: Fantastic experience !! If someone is interested, here the step by step „manual“:
1. To get the most important paper, the „Orden de Cedulación“ you make an online appointment at the Extranjeria in Ibarra, preferably a few months (!) in advance: https://www.cancilleria.gob.ec/orden-de-cedulacion-sistema…/
2. You pop in at the Extranjeria in Ibarra and ask for the „Papel de Requisitos para el Orden de Cedulación“. Here is a link to the necessary Requisitos, but still, you better rely on the little paper you get directly from the Extranjeria in Ibarra! https://www.cancilleria.gob.ec/requisitos-para-orden-de-ce…/
3. Over the next few weeks you get all the necessary documents together (be aware that some documents do only have a validity of two weeks, f.e. the certificate of health insurance).
4. About 3 days before your appointment you pay the necessary fee at the BAN-Ecuador Bank in Cotacachi (Parque Matriz). The bank account and the amount are mentioned on the Requisito-Paper you get from the Extranjeria. I had to pay USD 10.00.
5. At the date of your appointment you take the receipt of the above mentioned payment including a copy of it plus all the required documents with you to the Extranjeria in Ibarra (address: Luis Jaramillo Perez y Darío Egas, phone (06) 295 0164 = very close to the Redondell de la Madre!). Take also a bit time with you, because you might have to wait between half an hour and an hour. And be there 15 minutes before your appointment!
6. The very moment of your appointment you will receive the „Orden de Cedulación“. Without this document you can’t renew your Cedula!
7. Already the next day you can get your Cedula at the Plataforma Gubernamental (Sur) in Quitumbe-Quito! This place is the place with the most efficient service I’ve ever been to in Ecuador, and probably in Switzerland as well! Let me tell you why, but first you have to get there!
8. I recomment to take the direct bus at 05:50 in the morning from the bus Terminal Otavalo to the bus Terminal Quitumbe-Quito! Great bus, three hours of a stressless ride!
9. Exactly three hours later you will arrive at the Terminal Quitumbe-Quito!
10. Now you either walk about 700 meters along the Av. Condor Ñan and turn left at the Bus stop „Condor Ñan“ into the Av. Quitumbe Ñan, following this road another 700 m to the „Plataforma Gubernamental (Sur)“, a huge, massive white building, with a few bits of wooden façade and with nice green spaces all around. Or you just take a cab, giving them the same direction, or you take one of the buses (check them out on google maps).
11. You enter the huge building and look for the counter „Información Registro Civil“ and go there.
12. You tell the person that you need a „Renovación de Cedula“ and he/she will send you about 10 meters to the left, to the bank counter, where you have to pay the necessary fee. I had to pay USD 15.00.
13. At the bank counter you have to show your Cedula and the Orden de Cedulación. After paying the person will hand you over the number of your turn (mine was X28).
14. Now, be aware, you don’t have any time to loose!
15. This happend already the second time to me! Just opposite the bank counter, passing the information desk, there is the waiting area „Cedulación“. While entering this area, there was no sign of my turn on the monitors! I just sat down and had another glimpse at the monitors … and there my turn was already on!!! Not even two minutes after paying at the bank counter!!! So, a little recomendation: If you need to go to the loo, just go there before paying at the bank counter! 
16. So, you go to the desk you are asked for, you present your documents, have your fingerprints taken, sign on a small screen, have your picture taken and you are already off to the waiting area „Entrega de Cedula“ where they will hand you over your new Cedula. Usually it takes between 30-45 minutes to get the new Cedula.
17. With other words: It took me only 15 minutes from the moment I entered the building to the waiting area where they handed over my Cedula after 30 minutes!!!
18. So, 45 minutes after entering the building I was walking back to the Bus Terminal Quitumbe (!) to get the direct bus to Otavalo at 12:00 (noon), which arrived in Otavalo at 15:00 and got back to Cotacachi at around 15:30.
So you see: ALL EASY !! Hope this will be of some help to some of you !!
Below you will also find a foto of the timetable of the direct bus: Terminal Otavalo to the Terminal Quitumbe and vice-versa. By the way: It cost you only USD 3.50 one way!
From Otavalo at: 03:50 / 05:50 / 12:50 / 16:30
From Quitumbe to Otavalo at: 04:40 / 12:00 / 14:20 / 21:00
From Quitumbe DIRECTLY to COTACACHI: 17:25 / 20:15 (this I was told when I bought the ticket at the bus Terminal Quitumbe!)