diff --git a/src/app/components/auth/signup/signup.component.html b/src/app/components/auth/signup/signup.component.html
index 64b23f5..b5b591c 100644
--- a/src/app/components/auth/signup/signup.component.html
+++ b/src/app/components/auth/signup/signup.component.html
@@ -134,7 +134,7 @@
                       </div>
                       <div class="col-xl-8 col-md-7">
                         <input style="font-family: Metrophobic;" formControlName="identifiedCode" class="form-control"
-                          type="number" placeholder="CMND/CCCD" />
+                          type="tel" placeholder="CMND/CCCD" />
                         <div
                           *ngIf="userIdentifiedCode?.invalid && (userIdentifiedCode?.dirty || userIdentifiedCode?.touched)"
                           class="alert alert-danger mt-1">
diff --git a/src/app/constants/Validation.ts b/src/app/constants/Validation.ts
index b89a5f4..f1f2460 100644
--- a/src/app/constants/Validation.ts
+++ b/src/app/constants/Validation.ts
@@ -1,7 +1,7 @@
 export class Validation {
   static Regex = {
     Phone: new RegExp(/^(((\+|)84)|0)([1-9]{1})([0-9]{8})\b/),
-    IdentifiedCode: new RegExp(/^(\d{9}|\d{12})$/),
+    IdentifiedCode: new RegExp(/^0\d{8}$|^0\d{11}$|^\d{9}$|^\d{12}$/),
     Password: new RegExp(/(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[@$!%*#?&^_-]).{8,}/),
   };
 }